Koito Manufacturing Co., Ltd.

Japan

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        Patent 2,233
        Trademark 26
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        United States 892
        Europe 7
        Canada 3
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[Owner] Koito Manufacturing Co., Ltd. 2,185
Koito Electric Industries, Ltd. 52
North American Lighting, Inc. 24
Date
New (last 4 weeks) 25
2025 April (MTD) 23
2025 March 17
2025 February 13
2025 January 25
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IPC Class
F21Y 115/10 - Light-emitting diodes [LED] 457
B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means 266
B60Q 1/00 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor 260
B60Q 1/04 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights 219
F21S 8/10 - specially adapted for vehicles 218
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NICE Class
11 - Environmental control apparatus 17
09 - Scientific and electric apparatus and instruments 15
12 - Land, air and water vehicles; parts of land vehicles 6
35 - Advertising and business services 4
42 - Scientific, technological and industrial services, research and design 4
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Status
Pending 152
Registered / In Force 2,107
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1.

KOITO

      
Application Number 1852543
Status Registered
Filing Date 2025-01-31
Registration Date 2025-01-31
Owner KOITO MANUFACTURING CO., LTD. (Japan)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Computer software; computers; semi-conductor devices; semi-conductor elements; semi-conductors; integrated circuits; electronic display units; liquid crystal display; head-up display apparatus for vehicles; electronic control systems; electronic control circuits; power distribution and control machines and apparatus; electrical connectors; electrical fuses; electrical switches for vehicular lamps; electric and electronic actuators; measuring and testing apparatus and instruments; measuring apparatus; distance measuring apparatus; speed checking apparatus for vehicles; accelerometers; measuring devices, electric; weighing apparatus and instruments; length measuring instruments; sensors; motion recognizing sensors; position sensors for vehicles; detecting apparatus and instruments; motion detectors; vehicle and pedestrian detection equipment; Light Detection and Ranging [LIDAR] apparatus; collision avoidance warning systems for vehicles and pedestrians; alarms; telecommunication machines and apparatus; communication transmission equipment; remote control apparatus; electric installations for the remote control of industrial operations; remote monitoring apparatus; digital cameras; digital cameras for use in vehicles, aircraft and vessels; radio transmitters and receivers; loudspeakers; photographic apparatus and instruments; cameras [photography]; optical machines and apparatus; traffic-light apparatus [signaling devices]; signals, luminous or mechanical; flashing lights [luminous signals]; downloadable image files.

2.

DISPLAY APPARATUS

      
Application Number 18683678
Status Pending
Filing Date 2022-08-04
First Publication Date 2025-04-24
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Endo, Masahiro
  • Fugiyoshi, Takatomo

Abstract

A display apparatus is capable of preventing an optical element provided in the display apparatus such as a HUD apparatus from rattling, to adjust a display position of an image with high accuracy. In a HUD apparatus including a concave mirror that projects image light of an image displayed on an image display unit, the concave mirror is supported on an apparatus body via the rotary shaft and is able to pivot in a direction around an axis with a rotation mechanism. A single elastic member 6 is included that urges the concave mirror in the axial direction and the direction around the axis of the rotary shaft.

IPC Classes  ?

  • G02B 27/01 - Head-up displays
  • G02B 7/182 - Mountings, adjusting means, or light-tight connections, for optical elements for prismsMountings, adjusting means, or light-tight connections, for optical elements for mirrors for mirrors

3.

IMAGE PROJECTION DEVICE

      
Application Number 18725957
Status Pending
Filing Date 2023-01-05
First Publication Date 2025-04-24
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Adachi, Genki
  • Yamamoto, Hideaki

Abstract

Provided is an image projection device capable of suppressing a temperature increase in an image emission unit due to external light. An image projection device for emitting a projection image to a display unit for displaying a virtual image, which includes an image emission unit (20) that emits image light, a projection optical unit (40) that emits the image light as the projection image in a direction of a point of view via the display unit, and a shutter unit (30) that is disposed on an optical path for the image light between the image emission unit (20) and the display unit and switches between a transmission mode for transmitting light and a shielding mode for shielding light.

IPC Classes  ?

4.

CONTROL DEVICE FOR LAMP UNIT, PROGRAM, AND HEADLIGHT FOR VEHICLE

      
Application Number JP2024035722
Publication Number 2025/084175
Status In Force
Filing Date 2024-10-07
Publication Date 2025-04-24
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Sawada Hirotaka
  • Kamiya Kyohei

Abstract

When another vehicle is positioned in front of a host vehicle (100), a control device (CO) outputs a signal capable of controlling a lamp unit (10) so as to adopt, among light distribution patterns, a pattern in which first regions (61, 71) each overlapping at least a portion of the other vehicle are darker than when the other vehicle is not positioned in front of the host vehicle (100). The vertical width (61W1) of the first region (61) with respect to a preceding vehicle (LV) when the other vehicle is the preceding vehicle (LV) is narrower than the vertical width (71W1) of the first region (71) with respect to an oncoming vehicle (OV) for which the distance from the host vehicle (100) is the same as the distance from the host vehicle (100) to the preceding vehicle (LV).

IPC Classes  ?

  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
  • F21V 7/00 - Reflectors for light sources
  • F21V 14/04 - Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
  • F21W 102/14 - Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off linesArrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions specially adapted for adaptive high beams, i.e. the beam is broader but avoids glaring other road users
  • F21Y 115/10 - Light-emitting diodes [LED]

5.

PROJECTION LENS AND LIGHTING FIXTURE FOR VEHICLE

      
Application Number JP2024035893
Publication Number 2025/084190
Status In Force
Filing Date 2024-10-08
Publication Date 2025-04-24
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Uchida, Naoki

Abstract

Provided are a projection lens and a lighting fixture for a vehicle, which prevent the occurrence of glare and a decrease in light distribution pattern accuracy due to abnormal refraction in a lens peripheral region. In this projection lens (2), resin lenses (21-23) are arranged side-by-side in a lens optical axis (Lx) direction in a lens barrel (20), and light emitted from a light source (30) is projected in a required light distribution pattern. A light-shielding ring (25) covering a peripheral region of the lens is disposed between the lenses (21, 22), which are adjacent to one another in the lens optical axis direction. The light-shielding ring (25) prevents abnormal refraction due to light passing through a low-accuracy region (AL) occurring at the peripheral edge of the resin-moulded lenses (21-23), and prevents the occurrence of glare and a decrease in the accuracy of the light distribution pattern.

IPC Classes  ?

  • F21S 41/29 - Attachment thereof
  • F21S 41/43 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
  • F21S 41/47 - Attachment thereof
  • F21S 41/143 - Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
  • F21S 41/153 - Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
  • F21S 41/255 - Lenses with a front view of circular or truncated circular outline
  • F21S 41/663 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
  • F21S 45/70 - Prevention of harmful light leakage
  • F21V 5/00 - Refractors for light sources
  • F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
  • F21W 102/135 - Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
  • F21Y 105/10 - Planar light sources comprising a two-dimensional array of point-like light-generating elements
  • F21Y 115/10 - Light-emitting diodes [LED]

6.

LIGHT DISTRIBUTION CONTROL SYSTEM AND LIGHT DISTRIBUTION CONTROL METHOD

      
Application Number JP2024036513
Publication Number 2025/084251
Status In Force
Filing Date 2024-10-11
Publication Date 2025-04-24
Owner
  • KOITO MANUFACTURING CO., LTD. (Japan)
  • DENSO CORPORATION (Japan)
Inventor
  • Watano Yuichi
  • Hanai Shoichiro

Abstract

An imaging device (11) acquires an image in which a region located at least in front of a moving body is reflected. An illumination device (12) distributes light to a region to be illuminated positioned at least in front of the moving body. An image processing device (13) outputs recognition accuracy information (RL) indicating the likelihood that an object reflected in the image is a predetermined target, and needed degree of caution information (CA) corresponding to a needed degree of caution for the target. A light distribution processing device (14) causes the illumination device (12) to change the light distribution on the basis of the recognition accuracy information (RL) and the needed degree of caution information (CA). When the needed degree of caution is less than a threshold value, the light distribution processing device (14) gradually changes the illuminance of the region where the target is positioned in the region to be illuminated in accordance with the recognition accuracy.

IPC Classes  ?

  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
  • G03B 7/00 - Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
  • G03B 15/00 - Special procedures for taking photographsApparatus therefor
  • G03B 15/05 - Combinations of cameras with electronic flash apparatusElectronic flash units
  • H04N 23/56 - Cameras or camera modules comprising electronic image sensorsControl thereof provided with illuminating means
  • H04N 23/60 - Control of cameras or camera modules
  • H04N 23/74 - Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means

7.

VEHICLE LIGHT FIXTURE SYSTEM, LIGHT DISTRIBUTION CONTROL DEVICE, AND LIGHT DISTRIBUTION CONTROL METHOD

      
Application Number 18988065
Status Pending
Filing Date 2024-12-19
First Publication Date 2025-04-24
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Yamamoto, Hiroki
  • Komatsu, Motohiro

Abstract

A vehicle light fixture system includes: a low-beam unit adapted to form a low-beam light distribution pattern having a cutoff line and to independently adjust illuminance in a plurality of subareas in the low-beam light distribution pattern arranged below and along the cutoff line; and a light distribution control device that controls the low-beam unit to form a first reduced illuminance portion in, of the plurality of subareas, the subarea having a position in a vehicle width direction overlapping a position of a vehicle in front in the vehicle width direction.

IPC Classes  ?

  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
  • F21S 41/255 - Lenses with a front view of circular or truncated circular outline
  • F21S 41/663 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
  • F21W 102/155 - Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having inclined and horizontal cut-off lines

8.

LIGHT DISTRIBUTION CONTROL SYSTEM AND LIGHT DISTRIBUTION CONTROL METHOD

      
Application Number JP2024036511
Publication Number 2025/084250
Status In Force
Filing Date 2024-10-11
Publication Date 2025-04-24
Owner
  • KOITO MANUFACTURING CO., LTD. (Japan)
  • DENSO CORPORATION (Japan)
Inventor
  • Watano Yuichi
  • Hanai Shoichiro

Abstract

An imaging device (11) acquires an image in which at least a region located in front of a moving body appears. An illuminating device (12) performs light distribution to a region to be illuminated, located at least in front of the moving body. An image processing device (13) identifies a region of interest in which a prescribed target appears in the image, and outputs luminance information (LM) corresponding to the luminance of the region of interest and required caution level information (CA) corresponding to a required caution level for the target. A light distribution processing device (14) causes the illuminating device (12) to change the light distribution on the basis of the luminance information (LM) and the required caution level information (CA). If the required caution level is less than a threshold, the light distribution processing device (14) gradually changes the illumination intensity in a region, within the region to be illuminated, corresponding at least to the region of interest, in accordance with the luminance.

IPC Classes  ?

  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
  • G03B 7/00 - Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
  • G03B 15/00 - Special procedures for taking photographsApparatus therefor
  • G03B 15/05 - Combinations of cameras with electronic flash apparatusElectronic flash units
  • H04N 23/56 - Cameras or camera modules comprising electronic image sensorsControl thereof provided with illuminating means
  • H04N 23/60 - Control of cameras or camera modules
  • H04N 23/74 - Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means

9.

VEHICLE LAMP AND METHOD OF CONTROLLING VEHICLE LAMP

      
Application Number 18999780
Status Pending
Filing Date 2024-12-23
First Publication Date 2025-04-17
Owner Koito Manufacturing Co., Ltd. (Japan)
Inventor
  • Miwa, Mariko
  • Nakamura, Saki
  • Ye, Qiwei

Abstract

A vehicle lamp includes an optical unit including a spatial light modulator that provides a normal light distribution pattern and a road surface drawing, and an actuator that drives the optical unit so as to switch an illumination direction of the optical unit between a first direction for the normal light distribution pattern and a second direction for the road surface drawing, the second direction pointing more downward than the first direction. The spatial light modulator is configured to turn on at least part of an off area of the spatial light modulator for the normal light distribution pattern along with an on area of the spatial light modulator for the normal light distribution pattern, during a restoration operation of the actuator that drives the optical unit so as to restore the illumination direction of the optical unit upward from the second direction to the first direction.

IPC Classes  ?

  • F21S 41/63 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
  • F21S 41/143 - Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
  • F21S 41/64 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices

10.

MEASUREMENT DEVICE

      
Application Number 18834898
Status Pending
Filing Date 2022-11-24
First Publication Date 2025-04-17
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Hoshi, Kenichi
  • Itaba, Koji

Abstract

In a measurement device of the present disclosure, a timing control unit sets, as an exposure period corresponding to a measurement target region and set by a timing control unit, a plurality of sub-exposure periods that are longer than a width of pulsed light emitted from a light emitting unit and have different start timings so as to have an overlap period corresponding to the width of the pulsed light, and causes a pixel of a imaging sensor to be exposed to reflected light in each of the sub-exposure periods, and a signal acquisition unit acquires a signal value corresponding to a sum of exposure amounts of the pixel in the plurality of sub-exposure periods.

IPC Classes  ?

  • G01S 7/486 - Receivers
  • G01S 7/4861 - Circuits for detection, sampling, integration or read-out
  • G01S 7/4865 - Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
  • G01S 17/10 - Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
  • G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging

11.

VEHICLE LAMP, CONTROL DEVICE FOR VARIABLE LIGHT DISTRIBUTION LAMP, AND SOFTWARE PROGRAM

      
Application Number JP2024035500
Publication Number 2025/079504
Status In Force
Filing Date 2024-10-03
Publication Date 2025-04-17
Owner KOITO MANUFACTURING CO.,LTD. (Japan)
Inventor
  • Kamiya Kyohei
  • Sawada Hirotaka

Abstract

A control device 300 controls a variable light distribution lamp 110. The variable light distribution lamp 110 includes a plurality of control pixels PIX whose gradation can be controlled, and is configured to be able to emit a beam having an intensity distribution corresponding to the gradation of the plurality of control pixels PIX. An interface circuit 302 receives vehicle ROI information, which indicates a presence range of a vehicle ahead, from a vehicle. A calculation processing unit 304, using a rectangle including n presence ranges indicated by the predetermined n (n ≥ 2) pieces of the vehicle ROI information received most recently, as a reference region REF, determines a light distribution pattern PTN in which the illuminance gradually changes on the basis of the reference region REF. The control device 300 controls the gradation of the plurality of control pixels on the basis of the light distribution pattern PTN.

IPC Classes  ?

  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means

12.

MARKER AND LIDAR SYSTEM

      
Application Number JP2024035508
Publication Number 2025/079508
Status In Force
Filing Date 2024-10-03
Publication Date 2025-04-17
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Kuboniwa Takuya

Abstract

Provided is a marker (10) that can be detected by a plurality of LiDAR devices (20), the marker (10) comprising: a pole part (11); and a reflection part (12) that is provided at one end of the pole part (11) and that has a plurality of reflection regions which have different reflectivities and which reflect, toward the LiDAR devices (20), light emitted from the LiDAR devices (20).

IPC Classes  ?

  • G01S 7/497 - Means for monitoring or calibrating
  • G01C 15/06 - Surveyors' staffsMovable markers
  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements

13.

VEHICLE HEADLIGHT

      
Application Number 18716740
Status Pending
Filing Date 2022-12-06
First Publication Date 2025-04-17
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Mano, Mitsuharu
  • Kawabata, Naoki
  • Wakasugi, Tomoki
  • Matsuura, Shuji

Abstract

A vehicle headlight (1) includes: an image generation unit (20) configured to generate an image representing at least one of at least a part of a low beam light distribution pattern or at least a part of a high beam light distribution pattern; a light source unit (12) including a plurality of light emitting units and configured to emit light based on the image generated by the image generation unit (20), the plurality of light emitting units being configured to individually change an amount of light to be emitted, and arranged in a matrix; and a memory (ME) configured to store a first image for forming a first light distribution pattern by light emitted from the light source unit (12), and a second image for forming a second light distribution pattern by light emitted from the light source unit (12), the second light distribution pattern being different from the first light distribution pattern and at least partially overlapping the first light distribution pattern, in which the image generation unit (20) generates the image by superimposing the second image on at least a part of the first image and fading in the second image, and fading out the first image.

IPC Classes  ?

  • B60Q 1/08 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means

14.

VEHICLE HEADLIGHT DEVICE

      
Application Number JP2024035501
Publication Number 2025/079505
Status In Force
Filing Date 2024-10-03
Publication Date 2025-04-17
Owner KOITO MANUFACTURING CO.,LTD. (Japan)
Inventor
  • Ozawa Haruyuki
  • Muramatsu Takao

Abstract

This vehicle headlight device is provided with: a first high beam unit capable of forming a first high beam light distribution pattern and drawing a road surface in a first irradiation range (34); and a second high beam unit capable of forming a second high beam light distribution pattern in a second irradiation range (36). The first irradiation range (34) is shifted downward with respect to the second irradiation range (36) so as to include an overlapping area (38) in which the first irradiation range (34) and the second irradiation range (36) overlap, as well as a lower area (40) deviating from the second irradiation range (36) below the overlapping area (38). The first high beam unit forms a road surface drawing pattern (46) in the lower area (40).

IPC Classes  ?

  • B60Q 1/50 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
  • B60Q 1/00 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
  • B60Q 1/068 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle by mechanical means
  • F21V 7/00 - Reflectors for light sources
  • F21V 14/04 - Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
  • F21W 102/14 - Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off linesArrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions specially adapted for adaptive high beams, i.e. the beam is broader but avoids glaring other road users
  • F21W 103/60 - Projection of signs from lighting devices, e.g. symbols or information being projected onto the road
  • F21Y 115/10 - Light-emitting diodes [LED]

15.

OPTICAL MEMBER AND IMAGE PROJECTION DEVICE

      
Application Number JP2024033277
Publication Number 2025/074861
Status In Force
Filing Date 2024-09-18
Publication Date 2025-04-10
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Morimoto Yuji
  • Endo Masahiro
  • Murakami Kazuomi
  • Ozawa Kazuyoshi

Abstract

This optical member comprises: a first reflection surface (13); a second reflection surface (14) disposed so as to face the first reflection surface (13); a gap part (56) provided between the first reflection surface (13) and the second reflection surface (14); a first holding part (53) for holding the first reflection surface (13); a second holding part (54) for holding the second reflection surface (14); and a connection part (51) formed integrally with the first holding part (53) and the second holding part (54) and connecting both.

IPC Classes  ?

  • G02B 27/01 - Head-up displays
  • B60K 35/23 - Head-up displays [HUD]
  • H04N 5/64 - Constructional details of receivers, e.g. cabinets or dust covers

16.

IMAGE PROJECTION DEVICE

      
Application Number JP2024033279
Publication Number 2025/074862
Status In Force
Filing Date 2024-09-18
Publication Date 2025-04-10
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Sawa Yoshinori

Abstract

An HUD (10) has: a housing (11); an illuminance sensor (16) that is provided inside the housing (11); and a transparent member (17) that limits the optical path of the sunlight such that the sunlight reaches the illuminance sensor (16) when the sunlight enters the inside of the housing (11) at a specific angle from an opening (111) of the housing (11).

IPC Classes  ?

17.

IMAGE PROJECTION DEVICE

      
Application Number JP2024034116
Publication Number 2025/074917
Status In Force
Filing Date 2024-09-25
Publication Date 2025-04-10
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Hori, Masahiro
  • Terao, Kazuma

Abstract

Provided is an image projection device that can suppress dazzling and reductions in visibility caused by the reflection of external light. An image projection device (100) projects image light onto a display unit (WS) for displaying a virtual image (P). The image projection device (100) has an image irradiation unit (10) that irradiates image light into a viewing area, projection optical units (20, 30) that project image light onto the display unit (WS), and a housing unit (50) that houses the image irradiation unit (10) and the projection optical units (20, 30). A dust cover (60) is provided to the housing unit (50) at a position at which image light is extracted. The dust cover (60) is provided so as to be inclined at an angle of exactly β from the horizontal direction. External light that has arrived from the outside is reflected at the dust cover (60) so as to land above an upper end of the viewing area.

IPC Classes  ?

18.

LIGHTING CIRCUIT AND LIGHTING DEVICE

      
Application Number JP2024034117
Publication Number 2025/074918
Status In Force
Filing Date 2024-09-25
Publication Date 2025-04-10
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Ogo, Susumu
  • Yamada, Yukiya

Abstract

The present invention selectively drives a first light source and a second light source to emit light with a simple configuration. This lighting circuit supplies a driving current to the first light source and the second light source. The lighting circuit comprises: a lighting drive circuit which performs first lighting driving that is connected to a first power supply line and supplies a driving current to the first light source according to a voltage level of the first power supply line, and second lighting drive that is connected to a second power supply line and supplies a driving current to the second light source according to a voltage level of the second power supply line; a detection circuit that detects lighting of the first light source on the basis of a voltage of the first power supply line; and a cutoff circuit that has a switch connected to the second power supply line and opens the switch to cut off the second power supply line when the detection circuit detects the lighting of the first light source.

IPC Classes  ?

  • H05B 47/155 - Coordinated control of two or more light sources
  • B60Q 1/26 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
  • B60Q 1/34 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
  • H05B 47/24 - Circuit arrangements for protecting against overvoltage
  • H05B 47/105 - Controlling the light source in response to determined parameters
  • H05B 47/165 - Controlling the light source following a pre-assigned programmed sequenceLogic control [LC]

19.

LIGHTING CIRCUIT AND VEHICLE LAMP

      
Application Number JP2024032205
Publication Number 2025/074815
Status In Force
Filing Date 2024-09-09
Publication Date 2025-04-10
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Wakasugi, Kairi
  • Nakai, Ryota
  • Urushibata, Kosei

Abstract

The present invention comprises: a drive circuit that supplies a drive current to a light source; and a control circuit that includes a storage unit and that controls the drive circuit. The storage unit stores first information relating to the drive current in a light-increasing mode in which the brightness of the turned-off light source is gradually increased to a first brightness, and second information relating to the drive current in a first dimming mode in which the brightness of the light source is gradually reduced from the first brightness and the light source is turned off. The control circuit controls the drive circuit on the basis of a first instruction by using the first and second information so that the light source is turned off in the first dimming mode after the light source is turned on in the light-increasing mode, and controls the drive circuit on the basis of a second instruction by using a portion of the second information so that the light source is turned off in a second dimming mode in which the light source is turned off by gradually reducing the brightness of the light source from a second brightness darker than the first brightness.

IPC Classes  ?

  • H05B 45/10 - Controlling the intensity of the light
  • H05B 45/325 - Pulse-width modulation [PWM]
  • H05B 47/16 - Controlling the light source by timing means
  • H05B 47/17 - Operational modes, e.g. switching from manual to automatic mode or prohibiting specific operations

20.

IMAGE PROJECTION DEVICE

      
Application Number JP2024033654
Publication Number 2025/074885
Status In Force
Filing Date 2024-09-20
Publication Date 2025-04-10
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Ozawa Kazuyoshi
  • Tsukamoto Mayu
  • Sugawara Kazuhiro
  • Nakamura Hiromi

Abstract

In an image projection device (10) according to the present invention, a reflection mirror (40) is provided with an effective reflection region (42) that performs reflection control on light emitted from an image generation unit (20), and an outer peripheral edge region (44) that surrounds the entire periphery of the effective reflection region (42). The outer peripheral edge region (44) is formed thicker than the effective reflection region (42). Required rigidity is thus secured without much increase in the weight of the reflection mirror (40). Consequently, the deformation of the reflection mirror (40) is suppressed, and the optical function of the reflection mirror (40) is maintained. In addition, the reflection mirror (40) is configured to be supported by a first housing (52) or the like in the outer peripheral edge region (44). Consequently, the effective reflection region (42) is prevented from being deformed.

IPC Classes  ?

21.

LIGHTING CIRCUIT, LIGHTING DEVICE, AND PRODUCTION METHOD FOR LIGHTING CIRCUIT

      
Application Number JP2024034118
Publication Number 2025/074919
Status In Force
Filing Date 2024-09-25
Publication Date 2025-04-10
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Ogo, Susumu
  • Yamada, Yukiya

Abstract

The present invention can, for example, make it possible to change a division number for a sequential turn signal without the need for a complicated redesign of a circuit. A lighting circuit according to the present invention sequentially lights a plurality of light sources that are connected in series. The lighting circuit comprises: a plurality of switch elements that are provided to correspond to the plurality of light sources and are configured such that the corresponding light source turns on when a switching element is turned off; and a switch control circuit that sequentially outputs a turn-off signal to the plurality of switch elements. The lighting circuit has an on-maintaining unit that can keep at least one of the switch elements of the plurality switch elements excluding an uppermost switch element in an on state regardless of the output of the turn-off signal.

IPC Classes  ?

  • H05B 45/48 - Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
  • H05B 45/34 - Voltage stabilisationMaintaining constant voltage
  • H05B 45/36 - Circuits for reducing or suppressing harmonics, ripples or electromagnetic interferences [EMI]
  • H05B 45/38 - Switched mode power supply [SMPS] using boost topology
  • H05B 45/375 - Switched mode power supply [SMPS] using buck topology
  • H05B 47/16 - Controlling the light source by timing means

22.

ROAD SURFACE DRAWING DEVICE FOR VEHICLE AND HEADLIGHT FOR VEHICLE

      
Application Number JP2024035627
Publication Number 2025/075150
Status In Force
Filing Date 2024-10-04
Publication Date 2025-04-10
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Ohshio Hirohiko

Abstract

A road surface drawing device (1) for a vehicle displays a road surface drawing pattern (P) along a road ahead of a vehicle (100) in which said device is installed. The road surface drawing pattern (P) changes in accordance with the steering angle of the vehicle (100), the vehicle speed, and the angular velocity of the steering angle.

IPC Classes  ?

  • B60Q 1/00 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor

23.

PROJECTION DEVICE FOR VEHICLE

      
Application Number JP2024031116
Publication Number 2025/069917
Status In Force
Filing Date 2024-08-30
Publication Date 2025-04-03
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Tsuda Toshiaki
  • Hamada Yuri

Abstract

An HUD (2) is provided with a concave mirror (28) for projecting a virtual image in front of a vehicle. The concave mirror (28) has a reflection surface (280), and the reflection surface (280) has two sides approximately parallel to each other and different in length. A right corner part (UR) of the reflection surface (280) has a chamfered shape.

IPC Classes  ?

24.

VEHICULAR LAMP

      
Application Number JP2024030803
Publication Number 2025/062982
Status In Force
Filing Date 2024-08-28
Publication Date 2025-03-27
Owner KOITO MANUFACTURING CO.,LTD. (Japan)
Inventor
  • Iwakuma, Ryohei
  • Fujimura, Toshiyuki

Abstract

This vehicular lamp comprises a heat sink having a function for releasing heat, a first light source for high beams, a second light source for low beams, a first power supply path that is attached to the heat sink and supplies electric power to the first light source, a second power supply path that is attached to the heat sink and supplies electric power to the second light source, a first inner lens that is attached to the heat sink and controls light emitted from the first light source, and a second inner lens that is attached to the heat sink and controls light emitted from the second light source.

IPC Classes  ?

  • F21S 41/29 - Attachment thereof
  • F21S 41/25 - Projection lenses
  • F21S 41/33 - Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
  • F21S 41/39 - Attachment thereof
  • F21S 41/43 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
  • F21S 45/48 - Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
  • F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
  • F21V 23/06 - Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices
  • F21V 29/503 - Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
  • F21W 102/13 - Arrangement or contour of the emitted light for high-beam region or low-beam region
  • F21W 102/18 - Arrangement or contour of the emitted light for regions other than high beam or low beam for overhead signs

25.

CONTROL DEVICE, PROGRAM, AND LiDAR SYSTEM

      
Application Number JP2024033761
Publication Number 2025/063299
Status In Force
Filing Date 2024-09-20
Publication Date 2025-03-27
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Matsuda Toshiya

Abstract

A control device (20) for processing point cloud data received from a LiDAR device (10) comprises: a partition unit (22) that partitions data indicating a space into a plurality of voxels B; an assignment unit (23) that assigns an initial value f(0) of a variable to each of the voxels B; an adjustment unit (24) that, on the basis of the point cloud data every predetermined period, increases, by a predetermined increment, a variable f(n) of a voxel B accommodating a predetermined number or more of points r each indicating detection of an object for a first period or longer, or decreases the variable f(n) of the other voxels by a predetermined decrement, the first period being shorter than or equal to the predetermined period; and an output unit (25) that, after the adjustment unit (24) repeats the adjustment of the variable f(n) a predetermined number of times, outputs data distinguishing between voxels B with the variable f(n) greater than or equal to a predetermined threshold t and the other voxels B.

IPC Classes  ?

  • G01S 7/497 - Means for monitoring or calibrating
  • G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging

26.

ACTUATOR

      
Application Number JP2024031465
Publication Number 2025/063033
Status In Force
Filing Date 2024-09-02
Publication Date 2025-03-27
Owner KOITO MANUFACTURING CO.,LTD. (Japan)
Inventor Mochizuki Yuya

Abstract

An actuator 17 comprises: a case 24; a rod 26 which is accommodated in the case 24 and has a tip end that projects from an opening 34c to the outside of the case 24; a motor 28 accommodated in the case 24; and a movement mechanism 32 which is accommodated in the case 24 and is driven by the motor 28 to move the rod 26 in the axial direction thereof. The movement mechanism 32 includes an annular member into which a rod 26 is inserted, wherein: the rod 26 has a male screw portion 26g on an outer circumference thereof; the annular member has a female screw portion 42e on an inner circumference thereof; the rod 26 moves in the axial direction in response to rotation of the annular member; the case 24 has a regulating portion 34d on the side of the annular member, in the axial direction, on which the tip end is located; the rod 26 has a notched portion 26m that extends in the axial direction in a portion of the circumferential direction; and radial displacement in a radial direction is regulated by the notched portion 26m coming into contact with the regulating portion 34d.

IPC Classes  ?

  • F16H 25/24 - Elements essential to such mechanisms, e.g. screws, nuts
  • F16H 25/20 - Screw mechanisms

27.

GATING CAMERA, SENSING SYSTEM FOR VEHICLE, VEHICLE LAMP

      
Application Number 18294482
Status Pending
Filing Date 2022-08-05
First Publication Date 2025-03-20
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Hoshi, Kenichi
  • Ota, Ryo

Abstract

An illumination device irradiates a field of view with pulsed illumination light. A camera controller controls a light emission timing of the illumination device and an exposure timing of an image sensor. An image processing device generates a composite image by synthesizing a plurality of slice images output from the image sensor. The image processing device sets, as a valid image, a range that takes a local maximum value when pixels at the same position in each of the plurality of slice images are arranged in range order. The image processing device generates a pixel value at the same position in the composite image, based on a pixel value at the same position in the slice image corresponding to the valid range.

IPC Classes  ?

  • G06T 5/50 - Image enhancement or restoration using two or more images, e.g. averaging or subtraction
  • G06T 7/521 - Depth or shape recovery from laser ranging, e.g. using interferometryDepth or shape recovery from the projection of structured light
  • G06T 7/55 - Depth or shape recovery from multiple images
  • H04N 23/74 - Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means

28.

LAMP FITTING FOR DRAWING

      
Application Number JP2024030002
Publication Number 2025/057697
Status In Force
Filing Date 2024-08-23
Publication Date 2025-03-20
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Tani Kentaro

Abstract

Between a light-emitting element (20) and a projection lens (30), an image generation member (40) for generating an image that is the source of a light distribution pattern for drawing is disposed. The image generation member (40) is composed of a light-transmitting member, and a part of an emission surface (42a) thereof is configured as a light-transmitting region (42aA), and the periphery thereof is configured as a light-shielding region (42aB) in which a plurality of corner cubes (50) are formed. As a result, an image serving as the source of the light distribution pattern for drawing is generated by means of the light-transmitting region (42aA), while the light reaching the light-shielding region (42aB) is retroreflected toward an incident surface (42b) side of the image generating member (40) by the plurality of corner cubes (50) and is prevented from being emitted to the space ahead of the lamp fitting.

IPC Classes  ?

  • F21S 43/245 - Light guides characterised by the emission area emitting light from one or more of its major surfaces
  • B60Q 1/34 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
  • F21S 43/14 - Light emitting diodes [LED]
  • F21S 43/20 - Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
  • F21S 45/70 - Prevention of harmful light leakage
  • F21V 5/02 - Refractors for light sources of prismatic shape
  • F21W 103/20 - Direction indicator lights
  • F21W 103/60 - Projection of signs from lighting devices, e.g. symbols or information being projected onto the road
  • F21Y 115/10 - Light-emitting diodes [LED]

29.

LIGHT DISTRIBUTION CONTROL DEVICE, VEHICLE LAMP SYSTEM, AND COMPUTER PROGRAM

      
Application Number JP2024031466
Publication Number 2025/057800
Status In Force
Filing Date 2024-09-02
Publication Date 2025-03-20
Owner KOITO MANUFACTURING CO.,LTD. (Japan)
Inventor
  • Sumitani Hiroki
  • Kataoka Takuya

Abstract

This light distribution control device uses an image based on an imaging device for imaging an area in front of a vehicle to control the formation of a light distribution pattern by a light distribution variable lamp. When illuminance is to be changed in a first illuminance region (IR1) that is less than or equal to a prescribed first illuminance threshold value (Th1), the light distribution control device changes the illuminance by a first change amount (C1) that is smaller than a change amount by which the illuminance is to be changed in an illuminance region that is greater than the first illuminance threshold value (Th1).

IPC Classes  ?

  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
  • B60Q 1/04 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
  • F21V 7/00 - Reflectors for light sources
  • F21Y 105/10 - Planar light sources comprising a two-dimensional array of point-like light-generating elements
  • F21Y 115/10 - Light-emitting diodes [LED]
  • F21Y 115/15 - Organic light-emitting diodes [OLED]
  • F21Y 115/30 - Semiconductor lasers

30.

MEASUREMENT DEVICE, PROJECTOR, MEASUREMENT METHOD, PROJECTOR CONTROL METHOD, LASER BEAM AMPLIFICATION METHOD, MEASUREMENT PROGRAM, PROJECTOR CONTROL PROGRAM, AND COMPUTER-READABLE RECORDING MEDIUM HAVING COMPUTER PROGRAM RECORDED THEREON

      
Application Number JP2024031770
Publication Number 2025/057842
Status In Force
Filing Date 2024-09-04
Publication Date 2025-03-20
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Onoda Yukihiro
  • Sone Hidemichi
  • Tanigawa Kentaro

Abstract

A measurement device (10) comprising: a projector (20) that includes a seed laser (110) which produces a seed laser beam, an optical fiber (F1) which is doped with a rare earth element and to which the seed laser beam emitted by the seed laser is input, and an excitation laser (120) which produces excitation light for exciting the rare earth element of the optical fiber, and that emits, to the outside, an output laser beam outputted from the optical fiber; a light receiver that receives a reflected laser beam resulting from the output laser beam emitted by the projector being reflected by a measurement object and returning; and a controller. The controller executes: timing determination processing for determining an output timing when the output laser beam is to be output from the optical fiber to which the seed laser beam has been input; and measurement processing for measuring the distance to the measurement object on the basis of the time difference between the determined output timing and a light reception timing when the light receiver receives the reflected laser beam.

IPC Classes  ?

  • G01S 7/484 - Transmitters
  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements
  • G01S 7/4865 - Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
  • H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
  • H01S 3/067 - Fibre lasers

31.

MEASUREMENT DEVICE, MEASUREMENT PROGRAM, AND COMPUTER-READABLE RECORDING MEDIUM WITH COMPUTER PROGRAM RECORDED THEREON

      
Application Number JP2024031434
Publication Number 2025/057796
Status In Force
Filing Date 2024-09-02
Publication Date 2025-03-20
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Onoda, Yukihiro
  • Tanigawa, Kentaro
  • Tokida, Tsukasa

Abstract

The present invention suppresses a condition in which a plurality of reflected laser beams corresponding to a plurality of seed laser beams emitted in mutually different periods cannot be distinguished from each other in a light receiver. This measurement device comprises: a projector having a first seed laser that emits a first seed laser beam having a first wavelength, a second seed laser that emits a second seed laser beam having a second wavelength different from the first wavelength, an optical fiber, and an excitation laser; a light receiver; and a controller. The controller executes first measurement processing for measuring the distance to a measurement object on the basis of a first light reception timing at which the light receiver receives first reflected laser light corresponding to the first seed laser beam, and second measurement processing for measuring the distance to the measurement object on the basis of a second light reception timing at which the light receiver receives second reflected laser light corresponding to the second seed laser beam.

IPC Classes  ?

  • G01S 17/10 - Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
  • G01C 3/06 - Use of electric means to obtain final indication
  • G01S 7/484 - Transmitters

32.

IMAGE IRRADIATION DEVICE

      
Application Number 18284620
Status Pending
Filing Date 2022-03-16
First Publication Date 2025-03-13
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Momiyama, Daisuke
  • Yamamoto, Hideaki
  • Sugiyama, Takuo

Abstract

A HUD includes an image generation unit and a controller. The image generation unit emits first light for generating a first virtual image object to be displayed at a position apart from a vehicle by a first distance, and second light for generating a second virtual image object to be displayed at a position apart from the vehicle by a second distance longer than the first distance. The controller controls the image generation unit. The controller causes information being displayed on at least one of the first virtual image object and the second virtual image object to be displayed on the other of the first virtual image object and the second virtual image object, based on information related to traveling of the vehicle and an instruction from an occupant of the vehicle.

IPC Classes  ?

  • B60K 35/81 - Arrangements for controlling instruments for controlling displays
  • B60K 35/10 - Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
  • B60K 35/232 - Head-up displays [HUD] controlling the projection distance of virtual images depending on the condition of the vehicle or the driver
  • B60K 35/233 - Head-up displays [HUD] controlling the size or position in display areas of virtual images depending on the condition of the vehicle or the driver
  • B60K 35/29 - Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions

33.

VEHICLE LAMP SYSTEM

      
Application Number 18959820
Status Pending
Filing Date 2024-11-26
First Publication Date 2025-03-13
Owner Koito Manufacturing Co., Ltd. (Japan)
Inventor
  • Harada, Tomoaki
  • Endo, Yoshihisa

Abstract

A vehicle lamp system is used with a visible light camera. The vehicle lamp system has a white low-beam lamp, a white high-beam lamp, and a white imaging lamp. The visible light camera has an imaging range wider than an illumination range of the low-beam lamp. The imaging lamp has an illumination range wider than the imaging range of the visible light camera.

IPC Classes  ?

  • B60Q 1/00 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
  • B60R 11/00 - Arrangements for holding or mounting articles, not otherwise provided for
  • B60R 11/04 - Mounting of cameras operative during driveArrangement of controls thereof relative to the vehicle
  • F21S 41/663 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
  • F21W 102/13 - Arrangement or contour of the emitted light for high-beam region or low-beam region

34.

MEASUREMENT DEVICE

      
Application Number 18729370
Status Pending
Filing Date 2022-11-24
First Publication Date 2025-03-13
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Takahashi, Masayuki
  • Hoshi, Kenichi
  • Suzuki, Masatoshi
  • Itaba, Koji

Abstract

A measurement device includes: a light emitting unit configured to emit light to each of a plurality of measurement areas at different heights; an exposure unit having a plurality of exposure areas respectively corresponding to the measurement areas at different heights, and exposed to reflected light from the measurement areas by a plurality of light receiving elements respectively provided for the exposure areas; and a distance calculation unit configured to calculate a distance to a target in the measurement areas based on an exposure result of the exposure unit.

IPC Classes  ?

  • G01S 17/10 - Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
  • G01S 7/484 - Transmitters
  • G01S 17/894 - 3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar

35.

LAMP UNIT

      
Application Number JP2024031433
Publication Number 2025/053098
Status In Force
Filing Date 2024-09-02
Publication Date 2025-03-13
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Miwa, Mariko

Abstract

Provided is a novel lamp unit that is capable of reducing glare while achieving light distribution of a desired brightness. The lamp unit 14 comprises a first optical system 22 that forms a first light distribution pattern, and a second optical system 24 that is provided adjacent to the first optical system and forms a second light distribution pattern. The first optical system 22 has a first lens 16a. The second optical system 24 has a second lens 16b that is provided integrally with the first lens 16a. The first lens 16a has a first incident surface 28a on which light emitted from a first light-emitting element impinges, and a first emission surface 28b from which light impinging from the first incident surface 28a is emitted. The second lens 16b has a second incident surface 30a on which light emitted from a second light-emitting element impinges, and a second emission surface 30b from which light impinging from the second incident surface 30a is emitted.

IPC Classes  ?

  • F21S 41/265 - Composite lensesLenses with a patch-like shape
  • F21S 41/143 - Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
  • F21W 102/13 - Arrangement or contour of the emitted light for high-beam region or low-beam region
  • F21Y 115/10 - Light-emitting diodes [LED]

36.

LIGHT SOURCE APPARATUS AND HEAD-UP DISPLAY

      
Application Number 18723904
Status Pending
Filing Date 2023-02-01
First Publication Date 2025-03-06
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Toyoshima, Takanobu

Abstract

To provide a light source apparatus and a head-up display which can be downsized and achieve uniform illumination. The light source apparatus includes a first light source (11) and a second light source (12), an irradiation portion (14, 15) irradiated with first emitted light from the first light source (11) and second emitted light from the second light source (12), and at least one of a condenser arranged between the first light source (11) and the irradiation portion (14, 15) to condense the first emitted light or a diffuser (D1) arranged between the second light source (12) and the irradiation portion (14, 15) to diffuse the second emitted light.

IPC Classes  ?

  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors

37.

IMAGE PROJECTION DEVICE

      
Application Number JP2024029169
Publication Number 2025/047458
Status In Force
Filing Date 2024-08-16
Publication Date 2025-03-06
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Morimoto, Yuji
  • Sawa, Yoshinori

Abstract

Provided is an image irradiation device configured to project a display image on an image display part by using first and second reflection mirrors to sequentially reflect light emitted from an image generation unit, wherein a heat radiation function of the image generation unit can be improved. In a lower wall part 52b of a first housing 52, a region positioned below an intermediate position of first and second reflection mirrors 70, 80 is configured as an inclined surface part 52bB that is inclined downward toward the rear of the device, and an image generation unit 20 is supported on the inclined surface part 52bB via a heat sink 40. In this case, the heat sink 40 is configured such that a plurality of heat radiation fins 40B extending from the lower surface of a body part 40A of the heat sink are inserted into a plurality of fin insertion holes 52c formed in the lower wall part 52b, and front end surfaces 40Ba of the plurality of heat radiation fins 40B are formed so as to extend in a downward direction with respect to the surface perpendicular direction of the inclined surface part 52bB.

IPC Classes  ?

38.

VEHICLE LAMP

      
Application Number JP2024029645
Publication Number 2025/047537
Status In Force
Filing Date 2024-08-21
Publication Date 2025-03-06
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Matsui Koki
  • Watano Yuichi
  • Totsuka Takahiro
  • Osada Kazuhito

Abstract

A vehicle lamp comprising a resin component (16) that is not required to have light transmittance, the resin component (16) having a three-layer structure including: a first skin layer (16a) including a first resin; a second skin layer (16b) including the first resin; and a core layer (16c) provided between the first skin layer (16a) and the second skin layer (16b) and including a second resin having a different flexural modulus from that of the first resin.

IPC Classes  ?

  • F21S 45/00 - Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
  • F21S 41/00 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
  • F21V 7/24 - Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
  • F21V 15/01 - Housings, e.g. material or assembling of housing parts
  • F21W 102/00 - Exterior vehicle lighting devices for illuminating purposes
  • F21W 102/17 - Arrangement or contour of the emitted light for regions other than high beam or low beam
  • F21W 102/30 - Fog lights
  • F21W 103/20 - Direction indicator lights

39.

VEHICLE HEADLIGHT

      
Application Number JP2024029652
Publication Number 2025/047540
Status In Force
Filing Date 2024-08-21
Publication Date 2025-03-06
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Kito Masanori
  • Ito Tatsuki

Abstract

This vehicle headlamp (10) is provided with a first light source (11), a second light source (12) that forms a low-beam light distribution pattern (LP) together with the first light source (11), a first lens (14), and a second lens (15). A front surface (14F) of the first lens (14) forms a single lens surface, and a cutout region (C) cut out rearward is formed on a rear surface (14B) of the first lens (14). The first lens (14) has a first portion (141) through which light from the first light source (11) is transmitted and in which the cutout region (C) is not formed, and a second portion (142) through which light from the second light source (12) is transmitted and in which the cutout region (C) is formed. At least a portion of the second lens (15) is provided in the cutout region (C).

IPC Classes  ?

  • F21S 41/265 - Composite lensesLenses with a patch-like shape
  • F21S 41/43 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
  • F21S 41/143 - Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
  • F21S 41/663 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
  • F21W 102/155 - Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having inclined and horizontal cut-off lines
  • F21Y 115/10 - Light-emitting diodes [LED]

40.

ROAD SURFACE DRAWING DEVICE

      
Application Number JP2024031265
Publication Number 2025/047946
Status In Force
Filing Date 2024-08-30
Publication Date 2025-03-06
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Sudo Yuki
  • Kitazawa Yukiko

Abstract

This road surface drawing device displays a road surface drawing pattern (P) on a road surface. The road surface drawing pattern (P) includes a bright part (10) and a dark part (20) which is irradiated along at least a part of the bright part (10) and has a smaller luminance than the bright part (10).

IPC Classes  ?

  • B60Q 1/26 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
  • G08G 1/16 - Anti-collision systems

41.

SENSING SYSTEM

      
Application Number 18709428
Status Pending
Filing Date 2022-11-11
First Publication Date 2025-02-20
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Tokida, Masanori

Abstract

A sensing system includes an image sensor and an arithmetic processing device. The arithmetic processing device processes image data generate by the image sensor. When the arithmetic processing device detects a decrease in contrast in the same determination region of two consecutive frames of an image, the arithmetic processing device determines that a water droplet has adhered.

IPC Classes  ?

  • G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
  • B60Q 1/00 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
  • G06T 7/215 - Motion-based segmentation
  • G06V 10/141 - Control of illumination
  • G06V 10/50 - Extraction of image or video features by performing operations within image blocksExtraction of image or video features by using histograms, e.g. histogram of oriented gradients [HoG]Extraction of image or video features by summing image-intensity valuesProjection analysis
  • G06V 10/60 - Extraction of image or video features relating to illumination properties, e.g. using a reflectance or lighting model
  • G06V 10/62 - Extraction of image or video features relating to a temporal dimension, e.g. time-based feature extractionPattern tracking

42.

VEHICULAR LAMP

      
Application Number 18701476
Status Pending
Filing Date 2022-10-19
First Publication Date 2025-02-20
Owner
  • KOITO MANUFACTURING CO., LTD. (Japan)
  • TOYOTA JIDOSHA KABUSHIKI KAISHA (Japan)
Inventor
  • Katsurada, Yoshihiro
  • Furumoto, Kenji
  • Ikeno, Eisuke

Abstract

Provided is a vehicular lamp having a millimeter wave radar (30) disposed in a recessed section (14a1) formed in an outer surface (14a) of an outer lens (14) covering a lamp chamber (16). The vehicular lamp comprises: a holding bracket (40) for holding the millimeter wave radar (30); and a radar cover (50) for covering the millimeter wave radar (30). The holding bracket (40): is fixed to the outer lens (14) in a state in which the holding bracket (40) holds the millimeter wave radar (30); and is fixed to the holding bracket (40) in a state in which the radar cover (50) covers the millimeter wave radar (30).

IPC Classes  ?

  • B60Q 1/00 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
  • G01S 7/02 - Details of systems according to groups , , of systems according to group
  • G01S 7/03 - Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
  • G01S 13/931 - Radar or analogous systems, specially adapted for specific applications for anti-collision purposes of land vehicles

43.

MOTORCYCLE LAMP SYSTEM AND CONTROL DEVICE THEREFOR

      
Application Number JP2024028549
Publication Number 2025/037586
Status In Force
Filing Date 2024-08-08
Publication Date 2025-02-20
Owner KOITO MANUFACTURING CO.,LTD. (Japan)
Inventor
  • Harada Tomoaki
  • Muramatsu Takao

Abstract

A lamp system (200) comprises a dash cam (210) and a headlamp (220). An ECU (230) predicts a collision of a motorcycle (100) with a vehicle ahead, and reduces the luminance of the headlamp on the basis of the prediction result.

IPC Classes  ?

  • B60Q 1/04 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
  • B60Q 1/00 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
  • B60Q 1/24 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments for lighting other areas than only the way ahead
  • G08G 1/16 - Anti-collision systems

44.

CONTROL DEVICE FOR AUTOMOBILE, PROGRAM, AND LIGHT SYSTEM

      
Application Number JP2024028550
Publication Number 2025/037587
Status In Force
Filing Date 2024-08-08
Publication Date 2025-02-20
Owner KOITO MANUFACTURING CO.,LTD. (Japan)
Inventor
  • Harada Tomoaki
  • Muramatsu Takao

Abstract

A camera ECU (300) is mounted on an automobile (100) provided with a drive recorder (210), and is modularized together with a camera (212) of the drive recorder (210). A control device (300) processes an image IMG from the camera (212) of the drive recorder (210), predicts a collision of the automobile (100) with the preceding vehicle, generates a control signal (dimming instruction) S3, which is a trigger for reducing the luminance of a headlight (220), in response to the prediction, and outputs the control signal to the outside.

IPC Classes  ?

  • B60Q 1/04 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
  • G07C 5/00 - Registering or indicating the working of vehicles
  • G08G 1/00 - Traffic control systems for road vehicles

45.

LIGHTING CIRCUIT AND VEHICLE LIGHTING TOOL

      
Application Number 18718980
Status Pending
Filing Date 2022-12-01
First Publication Date 2025-02-13
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Ogo, Susumu
  • Ohta, Shinji

Abstract

A lighting circuit applied to a vehicle lighting tool includes: a power supply line to which power supply voltage is supplied in a first period of time out of a predetermined cycle including the first period of time and a second period of time, the supply of the power supply voltage being stopped in the second period of time; a regulator that supplies driving current to a light source based on the power supply voltage across the power supply line; a detection circuit that detects whether there is an abnormality in the light source; a signal output circuit that operates based on the power supply voltage across the power supply line and outputs a signal according to a detection result of the detection circuit; and a control circuit that stops an operation of the regulator when the signal indicating that there is an abnormality in the light source is output.

IPC Classes  ?

  • B60Q 11/00 - Arrangement of monitoring devices for devices provided for in groups
  • B60Q 1/34 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction

46.

MEASUREMENT DEVICE

      
Application Number 18722939
Status Pending
Filing Date 2022-11-24
First Publication Date 2025-02-13
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Takahashi, Masayuki
  • Nakamura, Yasuo
  • Hoshi, Kenichi
  • Kato, Daiki

Abstract

A measurement device includes: a light emitting unit configured to emit pulsed light; an imaging sensor configured to output a signal value corresponding to an exposure amount for each pixel; a timing control unit configured to expose the pixel of the imaging sensor to reflected light in an exposure period that is set according to a measurement target region and has an exposure width shorter than a pulse width of the pulsed light; and a calculation unit configured to calculate an arrival time of the reflected light based on signal values corresponding to three or more consecutive exposure periods that can include the pulse width.

IPC Classes  ?

  • G01S 17/894 - 3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
  • G01S 7/4863 - Detector arrays, e.g. charge-transfer gates
  • G01S 7/4865 - Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
  • G01S 17/10 - Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves

47.

MEASUREMENT DEVICE, MEASUREMENT METHOD FOR MEASUREMENT DEVICE, AND MANUFACTURING METHOD FOR MEASUREMENT DEVICE

      
Application Number JP2024025391
Publication Number 2025/033101
Status In Force
Filing Date 2024-07-12
Publication Date 2025-02-13
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Torii Teruaki
  • Gotoh Hitoshi

Abstract

A measurement device (10) comprises: a light projector (22) that emits light; a light receiver (32) that has a light receiving surface (34) for receiving reflected light that is the light emitted from the light projector that has returned after being reflected off an object being measured, the light receiving surface including a plurality of photon-counting light receiving elements arranged in an array; and a controller (42). The controller executes: a histogram generation process for generating a histogram on the basis of output values from the plurality of light receiving elements; a light reception timing estimation process for estimating a light reception timing of the reflected light on the basis of a first reach timing at which the histogram first reaches an intermediate value between the maximum value and the minimum value of the waveform of the histogram, and a second reach timing at which the histogram next reaches the intermediate value; and an output process for outputting information corresponding to the distance to the object being measured on the basis of a light projection timing at which the light projector emits the light and the light reception timing.

IPC Classes  ?

  • G01S 7/486 - Receivers
  • G01S 7/497 - Means for monitoring or calibrating
  • G01S 17/894 - 3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
  • G01S 17/931 - Lidar systems, specially adapted for specific applications for anti-collision purposes of land vehicles

48.

VEHICULAR LIGHTING FIXTURE

      
Application Number JP2024026781
Publication Number 2025/033215
Status In Force
Filing Date 2024-07-26
Publication Date 2025-02-13
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Ito, Tatsuki

Abstract

Provided is a vehicular lighting fixture capable of suppressing an influence of aberration and heat in a projection lens and projecting a highly accurate light pattern. The vehicular lighting fixture comprises a projection lens (2) for projecting a required light distribution pattern by projecting light emitted from a light source (3). The projection lens (2) comprises, in order from the side opposite to the light source (3), a first lens (21) and a second lens (22) of resin, and a third lens (23) and a fourth lens (24) of glass. A diaphragm (25) for limiting the light diameter of the projected light is disposed between the second lens (resin lens) (22) and the third lens (glass lens). By narrowing down the diaphragm (25), the aberration of the projection lens (2) is reduced. The heat of the light source (3) is suppressed by the diaphragm (25) from being transferred from the third lens (23) side toward the second lens (22) side.

IPC Classes  ?

  • F21S 41/683 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
  • F21S 41/153 - Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
  • F21S 41/663 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
  • F21V 11/10 - Screens not covered by groups , , or using diaphragms containing one or more apertures of iris type

49.

POLARIZATION CONVERSION ELEMENT AND IMAGE PROJECTION DEVICE

      
Application Number JP2024024624
Publication Number 2025/028174
Status In Force
Filing Date 2024-07-08
Publication Date 2025-02-06
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Nomura Keiichiro
  • Toyoshima Takanobu
  • Ozawa Kazuyoshi
  • Sugawara Kazuhiro

Abstract

This polarization conversion element comprises: a translucent holding part (13) which is constituted of a material that transmits light; a reflection-type polarization part (14) which is formed on one surface of the translucent holding part (13), reflects polarized-light in a prescribed direction as reflection light, and transmits polarized-light in a direction intersecting the prescribed direction as transmission light; a half-wave plate (15) which is formed on the other surface of the translucent holding part (13) and converts the polarization direction of the transmission light to the prescribed direction; and a reflection mirror which reflects the reflection light or the transmission light. The translucent holding part (13) has one end surface formed as an inclined surface (13a) which is non-perpendicular to the one surface.

IPC Classes  ?

  • G02B 5/30 - Polarising elements
  • B60K 35/23 - Head-up displays [HUD]
  • G02B 27/01 - Head-up displays
  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
  • G02F 1/13357 - Illuminating devices
  • G09F 9/00 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
  • H04N 5/64 - Constructional details of receivers, e.g. cabinets or dust covers

50.

LAMP SYSTEM

      
Application Number 18666022
Status Pending
Filing Date 2024-05-16
First Publication Date 2025-02-06
Owner Koito Manufacturing Co., Ltd. (Japan)
Inventor
  • Watanabe, Shigeyuki
  • Muramatsu, Takao
  • Noyori, Yasushi
  • Terayama, Takashi

Abstract

A high-definition lamp unit includes a plurality of individually controllable pixels, and emits lamp light having a light distribution corresponding to states of the plurality of pixels. A leveling actuator can control a mechanical position of the high-definition lamp unit. A controller controls the leveling actuator and the high-definition lamp unit according to a pitch angle of a vehicle body.

IPC Classes  ?

  • B60Q 1/11 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to vehicle inclination, e.g. due to load distribution by mechanical means
  • B60Q 1/115 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to vehicle inclination, e.g. due to load distribution by electric means

51.

LIGHTING CIRCUIT

      
Application Number 18720356
Status Pending
Filing Date 2022-12-16
First Publication Date 2025-02-06
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Kato, Takayuki
  • Uchiyama, Yoshihiro

Abstract

Provided is a lighting circuit capable of simultaneously turning off a plurality of light sources. A lighting circuit applied to a vehicle lamp including a plurality of light sources having a first light source connected to a power line and a second light source connected in series to the first light source and connected to a ground line, the lighting circuit including a first switch provided between the power line and the ground line, a second switch provided between a power-line-side node of the second light source and the ground line, and a control circuit that turns on or off each of the first and second light sources by controlling ON/OFF of each of a plurality of switches including the first and second switches.

IPC Classes  ?

  • B60Q 1/38 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction using immovably-mounted light sources, e.g. fixed flashing lamps
  • B60Q 1/30 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating rear of vehicle, e.g. by means of reflecting surfaces
  • H05B 45/375 - Switched mode power supply [SMPS] using buck topology
  • H05B 45/38 - Switched mode power supply [SMPS] using boost topology
  • H05B 45/54 - Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDsCircuit arrangements for operating light-emitting diodes [LED] responsive to LED lifeProtective circuits in a series array of LEDs
  • H05B 47/155 - Coordinated control of two or more light sources

52.

LIGHT SOURCE DEVICE AND IMAGE PROJECTION DEVICE

      
Application Number JP2024025601
Publication Number 2025/028257
Status In Force
Filing Date 2024-07-17
Publication Date 2025-02-06
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Ishikawa, Iwamichi
  • Toyoshima, Takanobu
  • Nomura, Keiichiro

Abstract

The present invention provides a light source device and an image projection device that make it possible to simplify the design of an optical system and that are capable of reducing unevenness. A light source device (10) that irradiates an irradiation unit with light, the light source device (10) including a first light source (12) that emits first emission light of a first wavelength, a second light source (13) that emits second emission light of a second wavelength, and a light guide member (14) disposed between the first light source (12) and the irradiation unit (16), wherein the light guide member (14) includes a transmission unit that transmits the first emission light in the direction of the irradiation unit (16) from the first light source (12) side, and the transmission unit guides the second emission light inside and includes a reflection recesses and protrusions that reflect light in the direction of the irradiation unit (16).

IPC Classes  ?

  • F21S 2/00 - Systems of lighting devices, not provided for in main groups or , e.g. of modular construction
  • B60K 35/23 - Head-up displays [HUD]
  • F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
  • G02B 27/01 - Head-up displays
  • F21Y 115/10 - Light-emitting diodes [LED]

53.

SUBSTRATE MODULE

      
Application Number JP2024026780
Publication Number 2025/028435
Status In Force
Filing Date 2024-07-26
Publication Date 2025-02-06
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Hasegawa, Youichi
  • Arai, Yasushi
  • Fujita, Yohei
  • Kanamori, Akitaka
  • Ishigami, Atsushi

Abstract

Provided is a new configuration for reducing defects when fixing a substrate. A substrate module (60) is provided with a substrate (58) on which an electronic component is mounted, and a base component (56) to which the substrate is fixed. The base component (56) has: a guide unit (62) that guides the substrate (58) so as to be placed at a predetermined position from above; and a fastening unit (66) in which the substrate (58) placed on the base component (56) is fastened in a state in which the substrate (58) slides along the upper surface of the base component.

IPC Classes  ?

  • F21V 19/00 - Fastening of light sources or lamp holders
  • F21S 41/143 - Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
  • F21S 45/10 - Protection of lighting devices
  • H05K 7/14 - Mounting supporting structure in casing or on frame or rack

54.

LAMP SYSTEM, LIGHT DISTRIBUTION CONTROL DEVICE, AND COMPUTER PROGRAM

      
Application Number JP2024023837
Publication Number 2025/022940
Status In Force
Filing Date 2024-07-01
Publication Date 2025-01-30
Owner KOITO MANUFACTURING CO.,LTD. (Japan)
Inventor
  • Sumitani Hiroki
  • Kataoka Takuya

Abstract

A lamp system 1 comprises: an imaging device 4; a variable light distribution lamp 2; a first bracket 8 which supports the imaging device 4; a second bracket 10 which supports the variable light distribution lamp 2 such that an emission direction 2x thereof can be changed, and which is independently displaceable relative to the first bracket 8; an emission direction sensor 12; and a light distribution control device 6 which detects a target object using an image IMG, defines the position of a shaded portion corresponding to the target object on the basis of a mutual correspondence relationship between an imaging direction 4x and the emission direction 2x, and controls the variable light distribution lamp 2 to form a light distribution pattern PTN having the shaded portion. If the emission direction 2x changes, the light distribution control device 6 defines the shaded portion 44 at a position shifted from the position of the shaded portion 44 determined on the basis of the correspondence relationship before the change, the position of the shaded portion 44 being shifted by an amount corresponding to the amount of change in the emission direction 2x.

IPC Classes  ?

  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means

55.

VEHICULAR LIGHT EMITTING DEVICE AND VEHICULAR LIGHT EMISSION METHOD

      
Application Number JP2024025600
Publication Number 2025/023113
Status In Force
Filing Date 2024-07-17
Publication Date 2025-01-30
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Saeki, Yukinori

Abstract

Provided are a vehicular light emitting device and a vehicular light emission method capable of emitting image light to an appropriate position. A vehicular light emitting device (1000) comprises an image light emitting unit (100) that emits image light, and an imaging unit (200) that captures an image outside the vehicle, wherein, if the image outside the vehicle includes a plurality of straight-line components, the position to which the image light is emitted is adjusted on the basis of an intersection point on extension lines of the straight-line components.

IPC Classes  ?

  • B60K 35/23 - Head-up displays [HUD]
  • B60Q 1/00 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
  • B60Q 1/04 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
  • G02B 27/01 - Head-up displays

56.

VEHICULAR LIGHTING DEVICE CONTROL SYSTEM

      
Application Number JP2024023041
Publication Number 2025/022912
Status In Force
Filing Date 2024-06-25
Publication Date 2025-01-30
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Kozaka, Toshiki
  • Funami, Yusuke

Abstract

According to the present invention, control of a vehicular lighting device including complicated control such as animation is efficiently executed with a simple configuration. This vehicular lighting device control system comprises: a first lighting device control apparatus that controls a first lighting device provided to a vehicle; and a second lighting device control apparatus that controls a second lighting device provided to the vehicle at a position different from that of the first lighting device. The first and second lighting device control apparatuses are communicably connected to each other. The first lighting device control apparatus has a first lighting device control unit that controls the first lighting device by a prescribed control method, and a first control instruction transmission unit that transmits, to the second lighting device control apparatus, a first control instruction to control the second lighting device by the prescribed control method. The second lighting device control apparatus has a first control instruction reception unit that receives the first control instruction, and a second lighting device control unit that controls the second lighting device by the prescribed control method in accordance with the first control instruction.

IPC Classes  ?

  • B60Q 1/00 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
  • B60Q 1/22 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments for reverse drive
  • B60Q 1/28 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating front of vehicle
  • B60Q 1/30 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating rear of vehicle, e.g. by means of reflecting surfaces
  • B60Q 1/44 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action
  • B60Q 1/50 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking

57.

CONTROL DEVICE, VEHICLE LAMP SYSTEM, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM

      
Application Number JP2024026858
Publication Number 2025/023329
Status In Force
Filing Date 2024-07-26
Publication Date 2025-01-30
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Nakatani Ryota
  • Sawada Hirotaka

Abstract

A control device (100) controls a vehicle lamp capable of emitting a light distribution pattern in an area in front of a vehicle. The control device (100) includes a control unit that controls the emission of the light distribution pattern. The control unit controls the driving of the vehicle lamp such that the light distribution pattern determined by the content of a road sign mark included in a captured image obtained by capturing an image of an area in front of the vehicle is emitted.

IPC Classes  ?

  • B60Q 1/08 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
  • B60Q 1/24 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments for lighting other areas than only the way ahead
  • B60Q 1/26 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic

58.

CONTROL DEVICE FOR LAMP UNIT, PROGRAM, AND HEADLIGHT FOR VEHICLE

      
Application Number JP2024024198
Publication Number 2025/018158
Status In Force
Filing Date 2024-07-04
Publication Date 2025-01-23
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Kamiya Kyohei
  • Mano Mitsuharu
  • Serizawa Kana
  • Wakasugi Tomoki

Abstract

In the present invention, in a first state in which an angle (θ) between a first direction (D1) from a vehicle (100) toward a predetermined object (OB1) which overlaps one of a pair of adjacent first regions (61a, 61b) and a second direction (D2) from the vehicle (100) toward a predetermined object (OB2) which overlaps the other of the pair of first regions (61a, 61b) is equal to or less than a first threshold value, a control device (CO) controls a lamp unit (10) so as to increase the light amount in a third region (63a) that includes a connected region (64b) which is connected to respective second regions (62a, 62b) surrounding the pair of first regions (61a, 61b) and which is sandwiched between the pair of first regions (61a, 61b). In a second state in which the angle (θ) between the first direction (D1) and the second direction (D2) with respect to the pair of first regions (61a, 61b) is greater than a second threshold value equal to or greater than the first threshold value, the control device (CO) controls the lamp unit (10) so as not to increase the light amount in the third region (63a).

IPC Classes  ?

  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means

59.

HEAT SINK, LIGHT-EMITTING MODULE, AND METHOD OF PRODUCING HEAT SINK

      
Application Number JP2024024572
Publication Number 2025/018201
Status In Force
Filing Date 2024-07-08
Publication Date 2025-01-23
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Sato, Yusuke
  • Mukai, Ryota

Abstract

Provided is a novel heat sink for which a bending process has been devised. A heat sink 24 is configured by folding a single metal plate, and comprises: a plurality of folded surfaces 24a on which a substrate is to be placed; and U-shaped fins 24b provided so as to interconnect adjacent folded surfaces 24a. The U-shaped fins 24b may have a ventilation hole 24d provided to a U-shape bottom surface 24c. The bottom surface 24c may be provided so that a perpendicular line X1 of the bottom surface and a perpendicular line X2 of the folded surfaces 24a have a twisted positional relationship.

IPC Classes  ?

  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
  • F21S 45/47 - Passive cooling, e.g. using fins, thermal conductive elements or openings
  • F21V 29/67 - Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
  • F21V 29/74 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
  • F21V 29/83 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
  • H01L 23/36 - Selection of materials, or shaping, to facilitate cooling or heating, e.g. heat sinks
  • F21W 102/00 - Exterior vehicle lighting devices for illuminating purposes
  • F21Y 115/10 - Light-emitting diodes [LED]

60.

IMAGE PROJECTION DEVICE AND IMAGE PROJECTION METHOD

      
Application Number JP2024024573
Publication Number 2025/018202
Status In Force
Filing Date 2024-07-08
Publication Date 2025-01-23
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Yoshinaga, Masahiro
  • Fukuta, Katsuya
  • Ohno, Takeshi

Abstract

Provided are an image projection device and an image projection method that make it possible to, with a simple configuration, effectively suppress an increase in the temperature of an image irradiation part due to external light. An image projection device (10) projects a virtual image via a display part, and is characterized by comprising an image irradiation part (11) that performs irradiation with image display light (GL) for forming the virtual image; and a reflection mirror (12) that guides the image display light (GL) to the display part. The image projection device (10) is also characterized by, if a predetermined condition is satisfied, changing the orientation of the reflection mirror (12) such that light (SL) incident on the reflection mirror (12) from the direction of the display part is not incident on the image irradiation part (11).

IPC Classes  ?

61.

IMAGE EMITTING DEVICE

      
Application Number JP2024024590
Publication Number 2025/018207
Status In Force
Filing Date 2024-07-08
Publication Date 2025-01-23
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Hara Hideki
  • Endo Masahiro

Abstract

Attached are positioning members (80) that vertically position first and second shaft parts (44A, 44B) of a second reflecting mirror (40), which are placed on respective placement parts (52h, 52j) of a first housing (52). The positioning members (80) are each configured from a sheet spring that is provided with a base part (82) and a lever part (84). In a state in which the base parts (82) are engaged with the first housing (52), the first and second shaft parts (44A, 44B) are elastically pressed from above at the lever parts (84). Thus, it is possible to perform assembly to the first housing (52) without the need for screw fastening or the like.

IPC Classes  ?

62.

LIGHT SOURCE, MEASUREMENT DEVICE, METHOD FOR MANUFACTURING LIGHT SOURCE, AND METHOD FOR MANUFACTURING MEASUREMENT DEVICE

      
Application Number JP2024025538
Publication Number 2025/018351
Status In Force
Filing Date 2024-07-16
Publication Date 2025-01-23
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Sone Hidemichi
  • Ito Yoshiro

Abstract

A light source (122) comprises: a light-emitting chip (1100) in which a surface light-emitting element (1110) is disposed, the light-emitting chip (1100) having a first surface (1102) that is electrically connected to the cathode of the surface light-emitting element (1110), and a second surface (1101) that is electrically connected to the anode of the surface light-emitting element (1110); a substrate (1200) in which a first conductive pattern (1210) and a second conductive pattern (1220) are formed; a conductive joining part (1300) that joins the first surface (1102) of the light-emitting chip (1100) and the first conductive pattern (1210); and a wire (1250) that electrically connects the second surface (1101) of the light-emitting chip (1100) and the second conductive pattern (1220). The light source (122) further comprises a non-conductive protection part (1310) that is disposed on the outer peripheral side of the joining part (1300) and that covers at least a portion of the outer peripheral surface of the joining part (1300).

IPC Classes  ?

  • H01S 5/0236 - Fixing laser chips on mounts using an adhesive
  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements
  • G01S 7/484 - Transmitters
  • G01S 17/931 - Lidar systems, specially adapted for specific applications for anti-collision purposes of land vehicles
  • H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
  • H01S 5/02345 - Wire-bonding

63.

DISPLAY DEVICE AND DISPLAY SYSTEM

      
Application Number JP2024022559
Publication Number 2025/018097
Status In Force
Filing Date 2024-06-21
Publication Date 2025-01-23
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Ohashi, Yosuke

Abstract

A display device according to the present disclosure comprises: an image generation unit that generates an image; an optical system that projects the image, as image light, to a transmission/reflection unit, and that displays a virtual image; and a control unit that causes a notification image, for notification, to be displayed in a band-shaped region on the lower edge of the virtual image.

IPC Classes  ?

64.

IMAGE PROJECTION DEVICE

      
Application Number JP2024024597
Publication Number 2025/018209
Status In Force
Filing Date 2024-07-08
Publication Date 2025-01-23
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Hori Masahiro

Abstract

A HUD (42) displays a virtual image within an eye box (EB). The HUD (42) is provided with a first concave mirror (422) and a second concave mirror (424) which respectively emit light to a first region (R1) and a second region (R2) that are different from each other and are smaller than the maximum region of the eye box (EB).

IPC Classes  ?

65.

DRIVE CIRCUIT FOR LIGHT-EMITTING ELEMENT, ACTIVE SENSOR, AND OBJECT IDENTIFICATION SYSTEM

      
Application Number 18687535
Status Pending
Filing Date 2022-08-29
First Publication Date 2025-01-16
Owner KOITO MANUFACTURING CO., LTD (Japan)
Inventor
  • Suzuki, Masatoshi
  • Itaba, Kojl
  • Kondo, Keita

Abstract

An input voltage VH of direct current is supplied to an input terminal IN, and an output terminal OUT is connected to a semiconductor light-emitting element 402. A half-bridge circuit 510 includes a high-side transistor MH provided between the input terminal IN and a switching node SW and a low-side transistor ML provided between the switching node SW and a ground terminal GND. A control circuit 530 controls both the high-side transistor MH and the low-side transistor LH to be in an on state during a first period T1 and only the high-side transistor MH to be in the on state during a second period T2 which follows the first period T1, in response to a light emission command S1 of the semiconductor light-emitting element 402.

IPC Classes  ?

  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements
  • G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging

66.

OPTICAL COMPONENT, VEHICLE LAMP, AND METHOD FOR MANUFACTURING OPTICAL COMPONENT

      
Application Number JP2024025295
Publication Number 2025/013933
Status In Force
Filing Date 2024-07-12
Publication Date 2025-01-16
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Nomura Yukio

Abstract

In the present invention, a reflector (16) comprises: a first reflector (17) constituted by a resin material; a shade (18) constituted by a metal material and assembled to the first reflector (17); and a second reflector (19) constituted by a metal material and assembled to the first reflector (17). The first reflector (17) has: a plate-like body section (17b) in which is formed an opening (17a) through which light emitted from a light source passes; and an upper reflection part (17d) which is provided around the opening (17a) and reflects part of the light passing through the opening to the front of a vehicle. The body section (17b) has: first fixing parts (17e) with which the shade (18) is assembled and fixed from a first direction; and second fixing parts (17f) with which the second reflector (19) is assembled and fixed from a second direction different from the first direction.

IPC Classes  ?

  • F21S 41/37 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
  • F21S 41/143 - Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
  • F21S 41/153 - Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
  • F21S 41/36 - Combinations of two or more separate reflectors
  • F21S 41/39 - Attachment thereof
  • F21S 41/47 - Attachment thereof
  • F21W 102/135 - Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions

67.

ROAD SURFACE DRAWING LAMP AND ROAD SURFACE DRAWING LAMP SYSTEM

      
Application Number 18710063
Status Pending
Filing Date 2022-10-17
First Publication Date 2025-01-16
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Menjo, Yosuke

Abstract

A road surface drawing lamp is configured to be mounted on a vehicle. The road surface drawing lamp is configured to draw a sequential light pattern in which an irradiation region changes in a sequential manner in a drawing region set in a surrounding region of the vehicle. The road surface drawing lamp is configured to first form, as the sequential light pattern, a first light pattern which is drawn at least in a part including a tip portion of the drawing region.

IPC Classes  ?

  • F21S 43/20 - Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
  • F21S 43/14 - Light emitting diodes [LED]
  • F21S 43/15 - Strips of light sources
  • F21W 103/60 - Projection of signs from lighting devices, e.g. symbols or information being projected onto the road

68.

IMAGE PROJECTION DEVICE

      
Application Number JP2024023715
Publication Number 2025/013669
Status In Force
Filing Date 2024-07-01
Publication Date 2025-01-16
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Hori, Masahiro

Abstract

Provided is an image projection device that can be made compact while reducing astigmatism caused by a display unit. Provided is an image projection device (100) comprising an image irradiation unit (10) that radiates an image for forming a virtual image (P) as image display light, and a projection optical unit that projects the image display light onto a display unit (WS), the projection optical unit being provided with a first concave mirror (20) that reflects the image display light radiated from the image irradiation unit, and a second concave mirror (30) that reflects the image display light reflected by the first concave mirror (20), the curvature of the first concave mirror (20) in a predetermined direction being greater than the curvature of the second concave mirror (30) in a predetermined direction, a component of the image display light in a predetermined direction forming an intermediate image between the first concave mirror (20) and the second concave mirror (30), and the optical path length from the image irradiation unit (10) to the second concave mirror (30) at the center position of the image display light being greater than 1 mm and less than 130 mm.

IPC Classes  ?

69.

PROJECTOR, MEASURING DEVICE, AND METHOD FOR MANUFACTURING PROJECTOR

      
Application Number JP2024023716
Publication Number 2025/013670
Status In Force
Filing Date 2024-07-01
Publication Date 2025-01-16
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Onoda, Yukihiro

Abstract

The present invention visualizes an invisible laser beam emitted from a laser light source during a transmission process performed by a light transmission mechanism. This projector comprises: the laser light source that emits the invisible laser beam; the light transmission mechanism that transmits the invisible laser beam emitted from the laser light source; and an output window through which the invisible laser beam transmitted by the light transmission mechanism is outputted to the outside. The projector further comprises a visible light source that emits visible light, and a merging instrument that merges the visible light emitted from the visible light source with the invisible laser beam on at least one of the entrance side and the midway of the light transmission mechanism.

IPC Classes  ?

  • G01S 7/497 - Means for monitoring or calibrating
  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements
  • H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
  • H01S 3/067 - Fibre lasers
  • H01S 5/02251 - Out-coupling of light using optical fibres

70.

IMAGE GENERATION APPARATUS AND HEAD-UP DISPLAY

      
Application Number 18709725
Status Pending
Filing Date 2022-11-07
First Publication Date 2025-01-09
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Sato, Noriko

Abstract

An image generation apparatus for generating an image of a head-up display includes a plurality of light sources, an optical member configured to transmit light emitted from the plurality of light sources, and a liquid crystal unit configured to generate a predetermined image by the light emitted from the optical member. The optical member includes an incident surface configured to receive the light emitted from the plurality of light sources, and an emitting surface configured to emit the light received by the incident surface to the liquid crystal unit. The emitting surface is formed by a single curved surface.

IPC Classes  ?

71.

VEHICLE LAMP SYSTEM, LIGHT DISTRIBUTION CONTROLLING DEVICE, AND LIGHT DISTRIBUTION CONTROLLING METHOD

      
Application Number 18887137
Status Pending
Filing Date 2024-09-17
First Publication Date 2025-01-09
Owner Koito Manufacturing Co., Ltd. (Japan)
Inventor
  • Muramatsu, Takao
  • Maruyama, Yuta
  • Watano, Yuichi

Abstract

A vehicle lamp system includes a first light distribution variable lamp that forms a first light distribution pattern having a first hot zone, a second light distribution variable lamp that forms a second light distribution pattern outside the first light distribution pattern in a width direction of a vehicle, and a light distribution controlling device that controls the first light distribution variable lamp and the second light distribution variable lamp. The light distribution controlling device controls the first light distribution variable lamp and the second light distribution variable lamp so as to swivel the first hot zone within the first light distribution pattern and to form the second light distribution pattern outside the first light distribution pattern where the first hot zone swivels to.

IPC Classes  ?

  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
  • F21S 41/663 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
  • F21W 102/135 - Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions

72.

PROJECTION DEVICE

      
Application Number JP2024023714
Publication Number 2025/009494
Status In Force
Filing Date 2024-07-01
Publication Date 2025-01-09
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Tani, Kentaro

Abstract

Provided is a projection device that prevents glare with respect to radiation light of an auxiliary lamp of a vehicle, and meanwhile suppresses a decrease in brightness of an optical pattern projected on a road surface. The present invention is a projection device (1) that is mounted on a vehicle and projects an optical pattern on a surrounding road surface, the projection device comprising: long-distance-side projection units (2, 3) that each project a predetermined long-distance-side light pattern to a relatively long-distance position; and a short-distance-side projection unit (4) that projects a predetermined short-distance-side light pattern to a relatively short-distance position. The long-distance side projection units (2, 3) project, using projection lenses (22, 23), the planar shapes of the light emitting surfaces of the LEDs (12, 13) as light patterns (FOP, COP). The short-distance-side projection unit (4) projects, as an optical pattern (NOP) and using a projection lens (24), the opening shape of a shade opening (34) opened in a shade (30) that blocks light emitted from an LED (14).

IPC Classes  ?

  • B60Q 1/34 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
  • B60Q 1/26 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
  • F21S 41/43 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
  • F21S 41/143 - Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
  • F21S 41/255 - Lenses with a front view of circular or truncated circular outline
  • F21S 41/265 - Composite lensesLenses with a patch-like shape
  • F21W 102/17 - Arrangement or contour of the emitted light for regions other than high beam or low beam
  • F21W 103/20 - Direction indicator lights
  • F21Y 115/10 - Light-emitting diodes [LED]

73.

ILLUMINATION DEVICE AND IMAGING SYSTEM

      
Application Number JP2024024092
Publication Number 2025/009559
Status In Force
Filing Date 2024-07-03
Publication Date 2025-01-09
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Fujii Honami
  • Shibata Yuichi

Abstract

An infrared light source (11) emits infrared light (IR). A white light source (12) emits white light (W). A control device (30) controls the timing at which the infrared light (IR) is emitted so as to co-operate with an imaging element (20) having sensitivity in at least the infrared wavelength range. The ratio of the radiance of the white light (W) to the radiance of the infrared light (IR) is greater than or equal to 6.0E-05.

IPC Classes  ?

  • B60Q 1/24 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments for lighting other areas than only the way ahead
  • B60Q 1/50 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking

74.

VEHICULAR LAMP

      
Application Number 18576446
Status Pending
Filing Date 2022-07-04
First Publication Date 2025-01-09
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Muramatsu, Teppei

Abstract

A vehicular lamp (100) includes a substrate (24), a light source (22a), a projection lens (30), and a light guidance body (40) having an incident surface (44a). A first space (201) is provided between a first region (441b) and the substrate (24), the first region (441b) including, on the incident surface (44a), a part of an outer peripheral edge of the incident surface (44a), and a second space (203) communicates with the first space (201) and is in contact with a second region (441c) including, on the incident surface (44a), the other part of the outer peripheral edge of the incident surface (44a). A width of the second space (203) is wider than a width of the first space (201) in an emission direction of the light from the light source (22a).

IPC Classes  ?

  • F21S 45/48 - Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
  • F21S 41/24 - Light guides
  • F21S 41/255 - Lenses with a front view of circular or truncated circular outline

75.

ROTATIONAL REFLECTOR

      
Application Number JP2024021833
Publication Number 2025/004874
Status In Force
Filing Date 2024-06-17
Publication Date 2025-01-02
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Tanaka, Hidetada

Abstract

Provided is a novel rotational reflector capable of forming a desired light distribution pattern. This rotational reflector comprises: a rotating part; and a resin body part that is provided around the rotating part and includes a blade that functions as a reflective surface. A sleeve 46 into which a rotating shaft of a motor is press-fitted is fixed to the rotating part. In the sleeve 46, a rotation stopping part 46c is formed on an outer peripheral surface 46d. The rotation stopping part 46c includes a plurality of first surfaces 46a, and a second surface 46b connecting the first surfaces to each other and having a curvature radius larger than that of the first surfaces. The rotation stopping part 46c is configured such that a boundary 46e between the first surface 46a and the second surface 46b protrudes outward.

IPC Classes  ?

  • F21S 41/675 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
  • F21V 7/00 - Reflectors for light sources
  • F21W 102/13 - Arrangement or contour of the emitted light for high-beam region or low-beam region

76.

HEADLIGHT FOR VEHICLE, AND HEADLIGHT SET FOR VEHICLE

      
Application Number JP2024022364
Publication Number 2025/004953
Status In Force
Filing Date 2024-06-20
Publication Date 2025-01-02
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Shimizu Takaya

Abstract

This vehicle headlamp (1L), (1R) comprises: a low-beam light source unit (30); a first light source unit (10) which has a plurality of light-emitting elements (11L)-(19L) and which emits light that forms a first additional light distribution pattern (10PT) in a region that includes an upper end of a low-beam light distribution pattern (30PT) and the upper side thereof; and a control unit (40). The amount of overlap between a predetermined light distribution pattern (14PT), located on the end side of the first additional light distribution pattern (10PT) in the left/right direction with reference to a central axis (C), and other light distribution patterns (19PT), (18PT) is greater than the amount of overlap between a specific light distribution pattern (17PT), located closer to the central axis (C) than the predetermined light distribution pattern (14PT), and other light distribution patterns (13PT), (12PT). The control unit (40) is capable of dimming or turning off a predetermined light-emitting element (14L).

IPC Classes  ?

  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
  • B60Q 1/08 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically

77.

VEHICLE HEADLIGHT

      
Application Number JP2024022365
Publication Number 2025/004954
Status In Force
Filing Date 2024-06-20
Publication Date 2025-01-02
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Shimizu Takaya

Abstract

A vehicle headlight (1L), (1R) comprises a low-beam light source unit (30), and a first light source unit (10) that emits light forming a first additional light distribution pattern (10PT) in a region including the upper end of a low-beam light distribution pattern and the upper side thereof. The first light source unit (10) has: an upper light source unit (10U) in which a plurality of light source parts (11)-(14) are arranged side by side, and light distribution patterns (11PT)-(14PT) formed by light emitted from the light source parts (11)-(14) are aligned in the left-right direction; and a lower light source unit (10L) which is disposed below the upper light source unit (10U), and in which a plurality of light source parts (15) to (19) are arranged side by side and light distribution patterns (15PT)-(19PT) formed by light emitted from the light source parts (15)-(19) are aligned in the left-right direction. The light distribution patterns (11PT)-(14PT) and the light distribution patterns (15PT)-(19PT) overlap in the left-right direction.

IPC Classes  ?

  • F21S 41/151 - Light emitting diodes [LED] arranged in one or more lines
  • F21S 41/148 - Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
  • F21S 41/26 - Elongate lenses
  • F21S 41/36 - Combinations of two or more separate reflectors
  • F21S 41/663 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
  • F21W 102/14 - Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off linesArrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions specially adapted for adaptive high beams, i.e. the beam is broader but avoids glaring other road users
  • F21W 102/155 - Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having inclined and horizontal cut-off lines
  • F21Y 115/10 - Light-emitting diodes [LED]

78.

LIGHT SOURCE MODULE

      
Application Number JP2024022839
Publication Number 2025/005047
Status In Force
Filing Date 2024-06-24
Publication Date 2025-01-02
Owner KOITO MANUFACTURING CO.,LTD. (Japan)
Inventor
  • Suzuki, Tetsuya
  • Sasaki, Yasutaka
  • Matsueda, Kuniaki
  • Ishikiriyama, Masaru
  • Murata, Yoshimasa
  • Ozawa, Atsushi
  • Naito, Ryota
  • Matsumoto, Yutaka

Abstract

A light source module (1) comprises: a light-emitting body (4) that uses a light-emitting diode as a light source; a heat sink (2) to which the light-emitting body is attached and which radiates heat generated during driving of the light-emitting body; and a wiring board (3) which is attached to the heat sink and in which a power supply circuit (3a) for supplying power to the light-emitting body is formed. The heat sink is formed by bending an aluminum plate. The heat sink is provided with a base part (5) to which the light-emitting body and the wiring board are attached, and heat radiation fin parts (6) which are connected to at least both ends of the base part and are bent with respect to the base part.

IPC Classes  ?

  • F21S 41/19 - Attachment of light sources or lamp holders
  • F21S 41/148 - Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
  • F21S 45/47 - Passive cooling, e.g. using fins, thermal conductive elements or openings
  • F21V 19/00 - Fastening of light sources or lamp holders
  • F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
  • F21V 29/74 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
  • F21V 29/76 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
  • F21V 29/83 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
  • F21V 29/508 - Cooling arrangements characterised by the adaptation for cooling of specific components of electrical circuits
  • H01L 33/64 - Heat extraction or cooling elements
  • F21W 102/00 - Exterior vehicle lighting devices for illuminating purposes
  • F21Y 115/10 - Light-emitting diodes [LED]

79.

MICROLENS ARRAY AND VEHICLE LAMP USING MICROLENS ARRAY

      
Application Number 18687938
Status Pending
Filing Date 2022-08-12
First Publication Date 2024-12-26
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Kazama, Ayaka

Abstract

A microlens array includes a plurality of optical systems. Each of the optical systems includes a pair of an incidence-side lens portion and an emission-side lens portion, respectively. A low refractive index portion is provided between an incident surface of the incidence-side lens portion and an emission surface of the emission-side lens portion. A refractive index of the low refractive index portion is lower than refractive indexes of other portions. The low refractive index portion comprises a first surface extending through a focus of the emission surface and a second surface extending from the first surface toward the incident surface. A cut line forming portion is formed by a boundary portion between the first surface and the second surface. The incident surface is provided at a position that does not overlap the second surface in a front view of the incidence-side lens portion.

IPC Classes  ?

  • F21S 41/265 - Composite lensesLenses with a patch-like shape
  • F21S 41/143 - Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
  • F21S 41/151 - Light emitting diodes [LED] arranged in one or more lines

80.

VEHICLE LAMP

      
Application Number 18829317
Status Pending
Filing Date 2024-09-10
First Publication Date 2024-12-26
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Kanezuka, Shohei

Abstract

A vehicle lamp includes: an outer lens disposed on a front side of the vehicle lamp; a lamp body disposed on a rear side of the vehicle lamp; and a light source disposed within a lamp chamber formed by the outer lens and the lamp body. A fine step is formed on a rear surface of the outer lens, and light from the light source enters the outer lens.

IPC Classes  ?

  • F21S 43/40 - Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
  • F21S 43/20 - Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
  • F21S 45/48 - Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
  • F21S 45/50 - Waterproofing
  • F21W 103/10 - Position lights

81.

GATING CAMERA, SENSING SYSTEM FOR VEHICLE, VEHICLE LAMP

      
Application Number 18294880
Status Pending
Filing Date 2022-08-05
First Publication Date 2024-12-26
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Hoshi, Kenichi
  • Nakamura, Yasuo
  • Itaba, Koji

Abstract

An illumination device irradiates a field of view with pulsed illumination light. In a multi-tap type image sensor, one pixel has a plurality of FD (floating diffusion) regions. A camera controller controls a light emission timing of the illumination device and an exposure timing of the image sensor. A pulse exposure region, which is one of the plurality of FD regions, is allocated to generation of a slice image, and a continuous exposure region, which is another one of the plurality of FD regions, is allocated to generation of a normal image. The image sensor generates the slice image by performing multiple exposure of reflected light of the pulsed illumination light from the field of view using the pulse exposure region, and generates the normal image by performing exposure using the continuous exposure region in a section where the pulse exposure region is not used.

IPC Classes  ?

  • H04N 23/74 - Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
  • H04N 23/72 - Combination of two or more compensation controls
  • H04N 23/73 - Circuitry for compensating brightness variation in the scene by influencing the exposure time
  • H04N 23/741 - Circuitry for compensating brightness variation in the scene by increasing the dynamic range of the image compared to the dynamic range of the electronic image sensors
  • H04N 25/78 - Readout circuits for addressed sensors, e.g. output amplifiers or A/D converters

82.

IMAGE PROJECTING DEVICE AND IMAGE PROJECTING METHOD

      
Application Number 18698967
Status Pending
Filing Date 2022-09-26
First Publication Date 2024-12-26
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Yamamoto, Hideaki
  • Ohashi, Yosuke

Abstract

An image projecting device for emitting a projection image on a display unit configured to display a virtual image. The image projecting device includes an image irradiation unit configured to emit an image, a light branching unit configured to branch light for emitting the image into at least first image light and second image light, a first optical unit configured to emit, as the projection image, the first image light in a viewpoint direction, via the display unit, and a second optical unit configured to emit the second image light in the viewpoint direction, without passing through the display unit.

IPC Classes  ?

83.

VEHICULAR LAMP AND CONTROL METHOD FOR VEHICULAR LAMP

      
Application Number JP2024020539
Publication Number 2024/262313
Status In Force
Filing Date 2024-06-05
Publication Date 2024-12-26
Owner KOITO MANUFACTURING CO.,LTD. (Japan)
Inventor
  • Oshio Hirohiko
  • Watanabe Shigeyuki

Abstract

This vehicular lamp is provided with a combination unit (11A) comprising: a low-beam unit (18) for projecting a low-beam light distribution pattern; and a high-beam unit (20) for projecting a high-beam light distribution pattern above the low-beam light distribution pattern. The high-beam unit (20) enables road surface rendering. The combination unit (11A) is capable of switching between a first projection direction in which the low-beam light distribution pattern is projected onto a prescribed low-beam region, and a second projection direction which is oriented downward as compared with the first projection direction. The high-beam unit (20) is configured to perform road surface rendering and illuminate the road surface in such a manner as to assist the low-beam light distribution pattern when the combination unit (11A) is oriented in the second projection direction.

IPC Classes  ?

  • B60Q 1/04 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
  • B60Q 1/00 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
  • B60Q 1/08 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically

84.

BRACKET OF LIGHTING FIXTURE FOR VEHICLE AND BRACKET MEMBER OF LIGHTING FIXTURE FOR VEHICLE

      
Application Number JP2024022265
Publication Number 2024/262546
Status In Force
Filing Date 2024-06-19
Publication Date 2024-12-26
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Totsuka Takahiro
  • Takahashi Yuki
  • Komoda Ryo
  • Ikawa Kentaro

Abstract

The present invention provides a bracket member for a lighting fixture for a vehicle, the bracket accommodating and securing at least a portion of a lamp unit that emits light forward and having a peripheral wall surface that opens in the front-rear direction and extends in the front-rear direction to partition the housing space of the lamp unit, wherein at least a portion of the peripheral wall surface serves as a double wall, and there is a partition wall that partitions the double wall and defines a small space that is sandwiched by the double wall and extends in the front-rear direction. Since a front wall and a back wall are not provided, the weight can be reduced correspondingly, and rigidity can be secured by the double wall and the partition wall inside the double wall.

IPC Classes  ?

  • F21S 45/10 - Protection of lighting devices
  • F21S 41/19 - Attachment of light sources or lamp holders
  • F21V 15/01 - Housings, e.g. material or assembling of housing parts
  • F21W 102/00 - Exterior vehicle lighting devices for illuminating purposes

85.

BRACKET MEMBER FOR VEHICLE LAMP

      
Application Number JP2024022267
Publication Number 2024/262548
Status In Force
Filing Date 2024-06-19
Publication Date 2024-12-26
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Totsuka Takahiro

Abstract

Provided is a bracket member having a bearing part provided on a side wall surface with the bearing part axially supporting a shaft body, the bracket member being configured such that: the side wall surface is a double wall comprising an inner wall and an outer wall and has formed therein a through hole that penetrates the inner wall and the outer wall; a recess is formed in the inner wall from an end surface of the inner wall to the through hole with the recess being recessed towards the outer wall, and a tongue part projecting toward the through hole is formed from an end of the recess that faces the through hole; and a shaft fitting part recessed in an arc shape is formed at the tip of the tongue part. By merely inserting the shaft body from the recess, the shaft body is inserted into the through hole, the tongue part serves as a stopper, and the shaft body can be fitted to the bearing part by a one-touch operation.

IPC Classes  ?

  • F21S 41/19 - Attachment of light sources or lamp holders
  • F21S 45/00 - Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
  • F21W 102/00 - Exterior vehicle lighting devices for illuminating purposes
  • F21W 102/10 - Arrangement or contour of the emitted light

86.

VEHICLE SYSTEM

      
Application Number 18702330
Status Pending
Filing Date 2022-09-30
First Publication Date 2024-12-19
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Shibata, Yoshinori

Abstract

A vehicle system includes a controller configured to control update of a light distribution control program, using update data acquired via wireless communication, perform light distribution control of a vehicle lamp based on the light distribution control program, and in a case where the update of the light distribution control program using the update data is failed, light distribution control performed by the controller.

IPC Classes  ?

  • G06F 8/65 - Updates
  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means

87.

Substrate sheet for card-type lamp unit, card-type lamp unit, and vehicle lamp

      
Application Number 18722343
Grant Number 12203643
Status In Force
Filing Date 2023-01-05
First Publication Date 2024-12-19
Grant Date 2025-01-21
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Suzuki, Tetsuya

Abstract

e) formed on the outer peripheral side of the substrate body (10), in which a coupling end portion (21, 22) for the frame body (23) is provided on the connector forming side (12).

IPC Classes  ?

  • F21V 23/06 - Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices
  • F21V 19/00 - Fastening of light sources or lamp holders
  • F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
  • F21V 29/503 - Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
  • F21V 29/70 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
  • F21Y 115/10 - Light-emitting diodes [LED]
  • F21Y 115/20 - Electroluminescent [EL] light sources

88.

LIGHT DISTRIBUTION CONTROLLING DEVICE, VEHICLE LAMP SYSTEM, AND LIGHT DISTRIBUTION CONTROLLING METHOD

      
Application Number 18819351
Status Pending
Filing Date 2024-08-29
First Publication Date 2024-12-19
Owner Koito Manufacturing Co., Ltd. (Japan)
Inventor Kihara, Satoshi

Abstract

A light distribution controlling device determines a light distribution pattern having a dimmed portion to overlap a dimming target present in a region ahead of a vehicle. The light distribution controlling device performs, by using a structuring element of a predetermined shape, a dilation process on a luminous point included in an image capturing the region ahead to generate a dilated region, and determines the dimmed portion based on the dilated region. The light distribution controlling device varies at least one of a size of the structuring element or a position of a pixel of interest in the structuring element in accordance with at least one of a vehicle speed or a rate of turn of the vehicle.

IPC Classes  ?

  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
  • B60Q 1/00 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor

89.

LAMP FITTING, AND VEHICULAR HEADLAMP

      
Application Number 18703148
Status Pending
Filing Date 2022-10-13
First Publication Date 2024-12-12
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Ikuta, Ryujiro
  • Nozue, Shuhei
  • Katsuura, Yasutaka
  • Utsumi, Ryosuke
  • Mochizuki, Kazuma

Abstract

A vehicular headlamp (1) serving as a lamp fitting includes: a board (40) on which a first light source (41) and a second light source (42) are mounted; a heat sink (20); and a reflector unit (50) that presses the board (40) against the heat sink (20) and reflects a part of light emitted from the first light source (41) and the second light source (42), in which the board (40) has recesses (45) which are recessed portions of side surfaces (40sf) facing each other, the first light source (41) and the second light source (42) are positioned at inner positions with respect to a bottom portion (45B) of each of the recesses (45), and the reflector unit (50) presses parts of the board (40) that are positioned at outer positions with respect to the bottom portion (45B) of each of the recesses (45).

IPC Classes  ?

  • F21S 41/39 - Attachment thereof
  • F21S 41/153 - Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
  • F21S 41/19 - Attachment of light sources or lamp holders
  • F21S 41/255 - Lenses with a front view of circular or truncated circular outline
  • F21S 41/29 - Attachment thereof
  • F21S 41/365 - Combinations of two or more separate reflectors successively reflecting the light
  • F21S 41/663 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
  • F21S 45/47 - Passive cooling, e.g. using fins, thermal conductive elements or openings
  • F21S 45/49 - Attachment of the cooling means
  • F21W 102/13 - Arrangement or contour of the emitted light for high-beam region or low-beam region
  • F21Y 115/10 - Light-emitting diodes [LED]

90.

Vehicle lamp

      
Application Number 18696748
Grant Number 12228259
Status In Force
Filing Date 2022-10-21
First Publication Date 2024-12-12
Grant Date 2025-02-18
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Honda, Takahiko
  • Ito, Tatsuki

Abstract

In a vehicle lamp configured to emit light from a plurality of light emitting elements to a lamp front via a projection lens, a horizontally-long light distribution pattern can be formed as a clear light distribution pattern even in a case where a substrate is inclined in a left-right direction with respect to a vertical plane perpendicular to a lamp front-back direction. A projection lens is divided into a first lens region for controlling direct light from six first light emitting elements located closer to a front end portion of a substrate and a second lens region for controlling direct light from six second light emitting elements located closer to a back end portion of the substrate, and a focal length of the second lens region is set to a value greater than a focal length of the first lens region.

IPC Classes  ?

  • F21S 41/265 - Composite lensesLenses with a patch-like shape
  • B60Q 1/04 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
  • F21S 41/40 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades

91.

ATTITUDE DETERMINING DEVICE, VEHICLE LAMP SYSTEM, ATTITUDE DETERMINING METHOD, AND CALIBRATION METHOD

      
Application Number 18808222
Status Pending
Filing Date 2024-08-19
First Publication Date 2024-12-12
Owner Koito Manufacturing Co., Ltd. (Japan)
Inventor
  • Sumitani, Hiroki
  • Suzuki, Atsumi

Abstract

An attitude determining device outputs a notification signal if, in an image that an imaging device has captured of a predetermined attitude determining pattern formed by a light distribution variable lamp that illuminates a region ahead of a vehicle with light, a position of the attitude determining pattern in a direction about an optical axis of the imaging device deviates from a normal position by no less than a predetermined amount.

IPC Classes  ?

  • G06T 7/80 - Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
  • G01B 11/26 - Measuring arrangements characterised by the use of optical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of optical techniques for testing the alignment of axes
  • H05B 47/105 - Controlling the light source in response to determined parameters

92.

CLEANER NOZZLE

      
Application Number 18699210
Status Pending
Filing Date 2022-10-07
First Publication Date 2024-12-05
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Kanazawa, Hironobu
  • Miura, Riichiro

Abstract

A cleaner nozzle includes: a cylinder extending in an axial direction; and a piston having an ejection port and being displaceable in the axial direction in the cylinder. The piston and the cylinder are provided with respective prevention portions that prevent relative displacement of the cylinder and the piston about an axis by coming into contact with each other.

IPC Classes  ?

  • B05B 1/32 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening

93.

CALIBRATION METHOD AND CALIBRATION DEVICE

      
Application Number 18799325
Status Pending
Filing Date 2024-08-09
First Publication Date 2024-12-05
Owner Koito Manufacturing Co., Ltd. (Japan)
Inventor Suzuki, Atsumi

Abstract

A calibration method includes forming a calibration pattern with a light distribution variable lamp onto a screen located at a distance from the light distribution variable lamp and an imaging device, capturing an image of the calibration pattern with the imaging device, acquiring a correspondence relationship between position coordinates of an image captured by the imaging device and position coordinates of the calibration pattern in a light illumination range, calculating an amount of parallax difference between the light distribution variable lamp and the imaging device, and correcting the correspondence relationship based on the amount of parallax difference and generating mutual position information between the light illumination range and the imaging range.

IPC Classes  ?

  • G06T 7/80 - Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
  • G01M 11/06 - Testing the alignment of vehicle headlight devices

94.

VEHICLE LAMP

      
Application Number JP2024018581
Publication Number 2024/247797
Status In Force
Filing Date 2024-05-21
Publication Date 2024-12-05
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Fujita, Shoji
  • Miwa, Mariko

Abstract

This vehicle lamp, which is configured to form a light distribution pattern having horizontal and oblique cutoff lines at an upper end part by emitting direct light from a light emitting element toward the front of the lamp through a convex lens, effectively suppresses discomfort caused to the driver of one's own vehicle and to the driver of an oncoming vehicle or the like, thereby enhancing the degree of freedom in spread of the horizontal and oblique cutoff lines in the left-right direction. A convex lens 12 is configured such that a first translucent part 12A and a second translucent part 12B are arranged side by side in the vertical direction in each of an upper half region 12U and a lower half region 12L. As a result, the degree of freedom in spread of the horizontal and oblique cut-off lines in the left-right direction is enhanced. Thus, the redness due to emission light from the upper half region 12U and the blueness due to emission light from the lower half region 12L are mixed to form horizontal and oblique cutoff lines exhibiting a color close to white.

IPC Classes  ?

  • F21S 41/265 - Composite lensesLenses with a patch-like shape
  • F21S 41/143 - Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
  • F21S 41/255 - Lenses with a front view of circular or truncated circular outline
  • F21V 5/04 - Refractors for light sources of lens shape
  • F21W 102/155 - Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having inclined and horizontal cut-off lines
  • F21Y 115/10 - Light-emitting diodes [LED]

95.

IMAGE PROJECTION DEVICE AND IMAGE PROJECTION METHOD

      
Application Number JP2024018582
Publication Number 2024/247798
Status In Force
Filing Date 2024-05-21
Publication Date 2024-12-05
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Ichii, Sekai

Abstract

Provided is an image projection device and an image projection method capable of improving the visibility of an image by minimizing the fluctuation of an image formation position of the image which is caused by the pitching of a vehicle. An image projection device (100) that projects a virtual image via a display unit comprises: an image radiation unit (140) that radiates an image for forming a virtual image as image display light; an acceleration acquisition unit (110) that acquires acceleration applied to the vehicle; a vehicle-information acquisition unit (120) that acquires driving state information of the vehicle; and an image-position correction unit (130) that corrects the display position of the image on the basis of the acceleration and the driving state information.

IPC Classes  ?

  • H04N 5/74 - Projection arrangements for image reproduction, e.g. using eidophor
  • B60K 35/23 - Head-up displays [HUD]
  • G02B 27/01 - Head-up displays
  • G09G 5/00 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
  • G09G 5/38 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of individual graphic patterns using a bit-mapped memory with means for controlling the display position

96.

CONTROL DEVICE, VEHICULAR HEADLAMP, AND PROGRAM

      
Application Number JP2024019087
Publication Number 2024/247896
Status In Force
Filing Date 2024-05-23
Publication Date 2024-12-05
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Kihara Satoshi

Abstract

A control device (11) comprises a camera interface (33) that acquires a signal relating to a captured image (20) from a camera (3) installed in a vehicle (100), and a sensor interface (34) connected to a sensor (4) that measures an inclination of the vehicle (100), wherein the control device (11) sets, in the captured image (20), a detection region (22) that is inclined in a direction opposite to the inclination of the vehicle (100), in accordance with the inclination of the vehicle (100), and acquires the coordinates of an object from the captured image (20) included in the detection region (22).

IPC Classes  ?

  • B60Q 1/115 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to vehicle inclination, e.g. due to load distribution by electric means
  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
  • B62J 6/023 - Headlights specially adapted for motorcycles or the like responsive to the lean angle of the cycle, e.g. changing intensity or switching sub-lights when cornering
  • B62J 6/024 - Switching between high and low beam
  • B62J 45/00 - Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
  • B62J 45/41 - Sensor arrangementsMounting thereof characterised by the type of sensor
  • B62J 45/415 - Inclination sensors
  • G06T 7/00 - Image analysis
  • G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]

97.

VEHICLE LAMP

      
Application Number JP2024019221
Publication Number 2024/247924
Status In Force
Filing Date 2024-05-24
Publication Date 2024-12-05
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Aiso Yoshiaki

Abstract

A vehicle lamp (1) comprising: a plurality of light source units (10); an attachment part (14) to which each light source unit (10) is attached; a bracket (15) to which the plurality of attachment parts (14) are all attached; a base frame (3); an aiming mechanism (5) capable of adjusting the orientation of the bracket (15) with respect to the base frame (3); and a pre-aiming mechanism (100) capable of adjusting the orientation of the attachment part (14) with respect to the bracket (15) to adjust the optical axis of the light source unit (10), wherein the pre-aiming mechanism (100) includes a feed screw (102) capable of adjusting the orientation, and the feed direction of the feed screw (102) extends in a direction intersecting the direction in which the attachment part (14) moves relative to the bracket (15).

IPC Classes  ?

  • F21S 41/657 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by moving light sources
  • F21S 41/19 - Attachment of light sources or lamp holders
  • F21S 41/148 - Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
  • F21W 102/10 - Arrangement or contour of the emitted light
  • F21Y 115/10 - Light-emitting diodes [LED]

98.

LENS UNIT, LAMP, AND LIDAR DEVICE

      
Application Number JP2024017847
Publication Number 2024/241981
Status In Force
Filing Date 2024-05-14
Publication Date 2024-11-28
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor Motohashi Kazuya

Abstract

A lens unit (30) comprises: a first meta-lens (31) having a first entering surface (31a) through which light enters and a first emission surface (31b) from which light that has entered through the first entering surface (31a) is emitted, and having, on the first emission surface (31b) side, a plurality of first nanostructures (311) that modulate the phase of light; and a second meta-lens (32) having a second entering surface (32a) which faces the first emission surface (31b) and through which light emitted from the first emission surface (31b) enters and a second emission surface (32b) from which light that has entered through the second entering surface (32a) is emitted, and having, on the second entering surface (32a) side, a plurality of second nanostructures (321) that modulate the phase of light.

IPC Classes  ?

  • G02B 3/08 - Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
  • F21V 5/00 - Refractors for light sources
  • F21V 5/04 - Refractors for light sources of lens shape
  • F21V 13/02 - Combinations of only two kinds of elements
  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements
  • G02B 13/00 - Optical objectives specially designed for the purposes specified below
  • F21Y 103/10 - Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
  • F21Y 115/10 - Light-emitting diodes [LED]
  • F21Y 115/30 - Semiconductor lasers

99.

VEHICLE HEADLIGHT

      
Application Number 18695198
Status Pending
Filing Date 2022-09-28
First Publication Date 2024-11-28
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Sato, Ryuho
  • Ugajin, Yuta

Abstract

A vehicle headlight (1) includes: a first light emitting optical system (LE1) that emits first light (L1); a second light emitting optical system (LE2) that emits second light (L2); a projection lens (35); and a beam shaper (50), in which the beam shaper (50) includes a main member (110) and a reinforcing member (120) overlapping the main member (110), the main member (110) includes a base portion (53) having a part that includes a front end of the main member (110) and does not overlap the reinforcing member (120) and a part that overlaps the reinforcing member (120) and to which the reinforcing member (120) is fixed, and an upper surface of the base portion (53) reflects a part of the first light (L1) toward the projection lens (35) in such a way as to form a cutoff line (CL) of a low beam light distribution pattern (PL).

IPC Classes  ?

  • F21S 41/25 - Projection lenses
  • B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
  • F21S 41/43 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof

100.

VEHICLE SENSOR DEVICE

      
Application Number 18696617
Status Pending
Filing Date 2022-09-21
First Publication Date 2024-11-28
Owner KOITO MANUFACTURING CO., LTD. (Japan)
Inventor
  • Watano, Yuichi
  • Kuboyama, Osamu
  • Katsurada, Yoshihiro

Abstract

A vehicle sensor device (1) includes an outer cover (12), a sensor unit (20) that is disposed deeper inside a vehicle (VE) than the outer cover (12), detects an object using electromagnetic waves transmitted and received through the outer cover (12), and outputs a detection signal related to the detection of the object, and a control unit (CO). The control unit (CO) makes a determination of whether an object detected by sensor unit (20) is included in an image signal from a camera (51) that is mounted on the vehicle (VE) and photographs a detection range of the sensor unit (20).

IPC Classes  ?

  • B60S 1/56 - Cleaning windscreens, windows, or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens
  • B60S 1/48 - Liquid supply therefor
  • B60S 1/54 - Cleaning windscreens, windows, or optical devices using gas, e.g. hot air
  • G01S 7/40 - Means for monitoring or calibrating
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