An outdoor luminaire (1000) comprising: a canopy (100) on top of a luminaire frame (200) and having a canopy enclosure (110); an optical chamber (230) bounded by the luminaire frame (200) and a light exit window (210); a light engine (400) being arranged below the canopy (100) and comprising a LED light source (420) and comprising a first heat sink (410) in (direct) thermal contact with said LED light source (420); an antenna system (500) for transmitting and/or receiving wireless signals is at least partly arranged within the outdoor luminaire (1000); a radio frequency transceiver (300) comprising a second heat sink (395) in (direct) thermal contact with the radio frequency transceiver (300), said radio frequency transceiver (300) is communicatively coupled to the antenna system (500); a support (310) for supporting the radio frequency transceiver (300). In an assembled, closed configuration the radio frequency transceiver (300) is mounted onto the frame (200) by the support (310) with the radio frequency transceiver (300) being at least partly recessed in the canopy enclosure (110) and being arranged at a spacing S from the first heat sink (410).
F21V 23/04 - Arrangement of electric circuit elements in or on lighting devices the elements being switches
F21S 8/08 - Lighting devices intended for fixed installation with a standard
F21V 15/01 - Housings, e.g. material or assembling of housing parts
F21V 29/508 - Cooling arrangements characterised by the adaptation for cooling of specific components of electrical circuits
F21V 29/71 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
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
The invention relates to a power supply comprising a rectifier for receiving an alternating current, AC, input voltage and for providing a rectified voltage, a switched mode power supply adapted to receive the rectified voltage and to provide a regulated output voltage to a load, a first sensor for sensing the rectified voltage and to provide a first control signal and a controller for controlling the switched mode power supply. The controller is arranged to enable and disable the switched mode power supply. The controller is arranged to enable the switched mode power supply when the first control signal is below a threshold level and disable the switched mode power supply when the first control signal is above the threshold level.
C1C1C1C2C1C2C2 C2C2; wherein the second dichroic beam splitter (420) is configured to provide the first part of the second luminescent material light (221b) back to the second luminescent material (220); (F) the beam combiner (500) is configured to combine the diffused first device light (711), the first part of the first luminescent material light (211a), and the second part of the second luminescent material light (221a) received by the beam combiner (500) into a beam of system light (1001), wherein the system light (1001) is white light having a correlated color temperature in a range from 2000-9000 K and a CRI of at least 70.
F21V 7/22 - Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
F21V 9/30 - Elements containing photoluminescent material distinct from or spaced from the light source
F21V 13/14 - Combinations of only three kinds of elements the elements being filters or photoluminescent elements, reflectors and refractors
F21K 9/64 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
There is provided a modular system (1), which comprises an elongated sheet metal structure (10) and one or more functional modules (20). Each functional module comprises a module support structure (22) and a functional element (30). The module support structure is configured to be mounted to the elongated sheet metal structure to support the functional element. The elongated sheet metal structure comprises an elongated reflective surface (12) that is curved perpendicular to an elongation direction (L), arranged to reflect electromagnetic radiation. The functional element has an operational direction range for emitting and/or receiving electromagnetic radiation. The functional element is placed such that the operational direction range faces the elongated reflective surface. The elongated sheet metal structure has a stiffness enabling it to resist deformation when supporting a weight of the functional modules in a mounted state.
F21S 4/28 - Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
F21S 8/04 - Lighting devices intended for fixed installation intended only for mounting on a ceiling or like overhead structure
A method of controlling individually controllable lighting units of a pixelated lighting device comprises obtaining (103) an input signal indicating one or more target light output characteristics, ascertaining (101) one or more initial light output characteristics, ascertaining (105) a target transition duration between the initial and target light output characteristics being rendered, determining (107) a difference between the initial and target light output characteristics, determining (109) whether to apply a direct transition or a stepwise transition between the initial and target light output characteristics based on the difference and the target transition duration, determining (111) one or more light settings based on the target light output characteristics and the determined transition, and controlling (113) the lighting units according to the light settings.
The invention provides a light generating system (1000) comprising a first light generating device (110), a second light generating device (120), a luminescent material (200), a diffuser element (710), and optics (500); wherein - the optics (500) comprise (a) a first beam splitter arrangement (1500), configured between the first light generating device (110) and the luminescent material (200), and (b) a second beam splitter arrangement (2500), configured between the second light generating device (120) and the diffuser element (710); - the first light generating device (110) is configured to generate first device light (111), having a first peak wavelength λ1; the second light generating device (120) is configured to generate second device light (121), having a second peak wavelength λ2; - wherein one of the beam splitter arrangements (1500,2500) is configured to combine the luminescent material light (201) and diffused second device light (711) received by that beam splitter arrangement; - the optics (500) comprise (c) a first lens arrangement (1510), configured between the first beam splitter arrangement (1500) and the luminescent material (200), and (d) a second lens arrangement (1520), configured between the second beam splitter arrangement (2500) and the diffuser element (710); - the optics (500) comprise (e) a primary angular spreader (TD11), configured between the first light generating device (110) and the first lens arrangement (1510), and (f) a secondary angular spreader (TD12), configured between the second light generating device (120) and the second lens arrangement (1520); - the light generating system (1000) is configured to generate system light (1001) comprising one or more of luminescent material light (201) and diffused second device light (711).
F21K 9/64 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
F21V 9/30 - Elements containing photoluminescent material distinct from or spaced from the light source
F21Y 113/10 - Combination of light sources of different colours
: The invention relates to a device and method for providing a vent tube in combination with a wire assembly in a luminaire grommet. In particular, the invention provides a wireway grommet design which enables access of both a vent tube and wire connections through a single access hole in the luminaire's housing.
A mechanism for controlling a power provided to a main load. A load driving arrangement is configured for powering a main load and an auxiliary load. The load driving arrangement has a switched mode power supply and a tuning circuit. The tuning circuit switches a value of an intrinsic circuit parameter of the switched mode power supply when switching between two different operation modes. This effectively modifies a gain of the switched mode power supply, therefore modifying a power provided to the main load between the two operation modes. More specifically, the switched-mode power converter comprises a resonant converter with a resonant component which comprises a resonant capacitive arrangement and the tuning circuit is adapted to tune a capacitance of the resonant capacitive arrangement as the intrinsic circuit parameter of the switched-mode power converter.
H05B 45/382 - Switched mode power supply [SMPS] with galvanic isolation between input and output
H02M 3/00 - Conversion of DC power input into DC power output
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
H05B 45/385 - Switched mode power supply [SMPS] using flyback topology
H05B 47/18 - Controlling the light source by remote control via data-bus transmission
9.
WET FLOOR DETECTION USING AN INFRARED TIME OF FLIGHT SENSOR
Detecting a presence of a liquid on a reflective surface using a ToF sensor system, wherein one or more infrared (IR) emitters (130-134) emit IR light via the reflective surface to a ToF sensor (110), wherein the ToF sensor receives the IR light, wherein the ToF sensor system determines a change in intensity of the received IR light, and wherein the ToF sensor system determines the presence of the liquid on the reflective surface based on the change in intensity of the received IR light.
A light emitting diode, LED, filament (1) configured to, in an on-state, emit LED filament light (2) and comprising an elongated carrier (3), an array of a plurality of LEDs (4) configured to, in an on-state, emit LED light (41) and being arranged on a first major surface (31) of the elongated carrier (3), a first elongated encapsulant (5) enclosing the plurality of LEDs (4), covering the first major surface (31), and comprising a first luminescent material (51), a second elongated encapsulant (6) enclosing the first elongated encapsulant (5) and comprising a second luminescent material (61), a third elongated encapsulant (7) covering a second major surface (32) of the elongated carrier (3) and comprising a third luminescent material (71). The second luminescent material (61) has a green color and is configured to convert LED light into first green converted light (62). The third luminescent material (71) has a green color and is configured to convert LED light and/or first green converted light (62) into second green converted light (72). The first luminescent material (51) has an orange-red color and is configured to convert one or more of the LED light, the first green converted light and the second green converted light into first orange-red converted light (52).
F21K 9/64 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
F21Y 103/10 - Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
F21Y 109/00 - Light sources with light-generating elements disposed on transparent or translucent supports or substrates
H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
11.
TRACK LIGHTING SYSTEM COMPRISING A LUMINAIRE HAVING MATING REFLECTOR MODULES
The invention provides a lighting arrangement (1000) comprising a lighting unit (1500); wherein the lighting unit (1500) comprises a light generating device (100), a reflector (200), and a connector (400), wherein: (A) the light generating device (100) comprises a LED light source (10); wherein the light generating device (100) is configured to provide device light (101); (B) the reflector (200) is reflective for the device light (101); wherein the reflector (200) comprises a first reflector module (210), and a second reflector module (220); wherein the first reflector module (210) comprises a first internal light exit window (211) and a first external light exit window (212), and the second reflector module (220) comprises a second internal light exit window (221) and a second external light exit window (222); (C) the first reflector module (210) further comprises a first end part (215) and a first reflector wall (216); wherein the second reflector module (220) further comprises a second end part (225) and a second reflector wall (226); wherein the connector (400) is configured to physically connect the first end part (215) and the second end part (225); wherein the first reflector wall (216) comprises two first wall ends (217); wherein the second reflector wall (226) comprises two second wall ends (227); wherein the first reflector module (210) and the second reflector module (220) are configurable in different reflector configurations; (D) a first plane (P1) defined through the first end part (215) and the two first wall ends (217) and a second plane (P2) defined through the second end part (225) and the two second wall ends (227) have a mutual angle (β), with, in a first reflector configuration a first mutual angle (β1) and in a second reflector configuration a second mutual angle (β2), unequal to the first mutual angle (β1); and (E) the lighting arrangement (1000) is configured to generate arrangement light (1001) comprising at least part of the device light (101), wherein the device light (101) is transmitted through one or more of the first external light exit window (212) and the second external light exit window (222).
F21V 7/16 - Construction with provision for adjusting the curvature
F21V 7/18 - Construction with provision for folding or collapsing
F21V 14/04 - Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
F21V 17/02 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
F21V 17/10 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
F21V 7/06 - Optical design with parabolic curvature
A light emitting diode, LED, filament (1) configured to, in an on-state, emit LED filament light (2), and comprising an elongated carrier (3), an array of a plurality of LEDs (4) configured to, in an on-state, emit LED light (41) and being arranged on a first major surface (31) of the elongated carrier (3), a first elongated encapsulant (5) enclosing the plurality of LEDs (4), covering the first major surface (31), and comprising a first luminescent material (51), a second elongated encapsulant (6) enclosing the first elongated encapsulant (5) and comprising a second luminescent material (61), a third elongated encapsulant (7) covering a second major surface (32) and comprising a third luminescent material (71). The first luminescent material (51) is configured to convert the LED light (41) into first green-yellow converted light (52). The second luminescent material (61) has a red color and is configured to convert the LED light (41) and/or the first green-yellow converted light (52) into first red converted light (62). The third luminescent material (71) has a red color and is configured to convert the LED light (41) and/or the first green-yellow converted light (52) into second red converted light (72).
F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
A recessed device mounting system includes a rotating member that includes a retention arm and a trigger arm, where the rotating member is pivotably attached to one or more rotating member attachment structures and where the retention arm and the trigger arm extend out in different directions with respect to each other. The recessed mounting system further includes an extension spring attached to the rotating member such that the extension spring biases the rotating member to rotate in an unengaged and in a mounting direction, where whether the extension spring biases the rotating member to rotate in the unengaged direction or in the mounting direction depends on a rotational position of the rotating member.
The present invention provides network access to network nodes (e.g., Zigbee nodes) without route discovery by combined reading of neighbor tables and source routing. By repeatedly reading neighbor tables of all nodes in the network, powered nodes can be found. Neighbor tables of neighbors listed in the neighbor table of the first node are read by providing a source route which may be obtained by tracking from which node the neighbor table was read. Route selection may be controlled based on a route quality (e.g., path cost). The result of this process is a list of source routes to all nodes. It is then possible to communicate with all nodes in the network using source routing (e.g., to read the light state).
A LED filament (1) provides LED filament light and comprises an array of LEDs (101) arranged along an elongation direction (150) on a first major surface (121) of an elongated carrier (102). A first elongated encapsulant (103) is arranged along the elongation direction (150) and at least partly covering the first major surface (121) of the elongated carrier (102) and at least partly enclosing the plurality of LEDs (101). The first elongated encapsulant (103) comprises a first luminescent material configured to at least partly convert LED light emitted by the LEDs into first converted light and/or a first light scattering material configured to at least partly scatter the LED light into first scattered light. The elongated carrier has a first width (W1) and a first height (H1) in a plane transverse the direction of elongation. The first elongated encapsulant has a second width (W2) and a second height (H2) in the same plane. W2/W1 ≥ 1.3, preferably W2/W1 > 1.5.
F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
H10H 20/853 - Encapsulations characterised by their shape
According to certain embodiments, a heatsink assembly for a luminaire may include a shell and one or more lighting module holders. The shell may include a frame and one or more cross members that may be attached to the inner surface of the frame and that may form one or more openings proximate to the rear end of the frame. One or more lighting module holders may be configured to be held in the one or more openings. The one or more lighting module holders may contain a mounting region and a plurality of heatsink fins that are extended from one surface of the mounting region and positioned to extend from the corresponding opening. wherein the plurality of fins has a thickness, height and spacing that are configured to provide a predetermined and/or optimized minimum weight of the plurality of fins. A support ring is mounted on the top portions of the heatsink fins to provide support during operation. The mounting region is configured to receive a lighting module and a lower surface that is sized to correspond to and be larger than a corresponding one of the openings. In some embodiments, the lighting module holder forms a heat sink.
F21V 29/71 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
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 29/77 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
18.
A SENSING SYSTEM FOR DETERMINING A PARAMETER OF A SET OF ANIMALS
The invention provides a sensing system for determining a parameter of a set of animals present on a surface area of an agricultural environment, wherein the sensing system comprises: a plurality of lighting devices spatially arranged within said agricultural environment and configured to illuminate said agricultural environment; wherein each lighting device of the plurality of lighting devices comprises a radiofrequency transceiver for exchanging wireless communication signals within a wireless network within said agricultural environment; wherein at least one transmitting lighting device of the plurality of lighting devices exchanges wireless communication signals with at least one receiving lighting device of the plurality of lighting devices; a controller configured to: (i) obtain communication data comprising the wireless communication signals exchanged within said wireless network between the at least one transmitting lighting device and the at least one receiving lighting device, and (ii) determine the parameter of the set of animals based on said communication data.
A01K 45/00 - Other aviculture appliances, e.g. devices for determining whether a bird is about to lay
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
A mechanism for controlling a wireless communication module of a wireless communication device. The wireless communication module is controlled to switch between an active mode and a sleep mode. In the active mode, the wireless communication module communicates with a routing device over a first wireless communication channel. In the sleep mode, the wireless communication module communicates with a second device, such as a remote control, over a second wireless communications channel.
The invention provides lighting system for illuminating a target surface in an agricultural environment for a flock of birds, wherein the lighting system comprises a plurality of lighting devices spaced apart on an elongated axis, wherein each lighting device comprises: a connector for electrically connecting the lighting device to a power line; a housing comprising a light exit window; at least one solid-state light source arranged within the housing, wherein the at least one solid-state light source is configured to emit light source light; wherein each lighting device is configured to shape the light source light into a light beam, and configured to emit the light beam along a main optical axis via the light exit window onto the target surface; wherein adjacent lighting devices of the plurality of lighting devices are spaced apart with a spacing (S); and wherein the light exit windows of the adjacent lighting devices are arranged at a distance (H) from the target surface; wherein each respective light beam of the adjacent lighting devices has an angular light distribution with a Full Width Half Maximum (FWHM); wherein (Formula ); wherein FWHM is said Full Width Half Maximum (FWHM); wherein S is said spacing (S); wherein H is said distance (H); and wherein F is a factor in the range between 0.1 and 1.
A light generating system (1) comprising a first LED light source (3) configured to emit first blue LED light (4), a first phosphor element (5) configured to convert the first blue LED light (4) into first red converted light (6), a second LED light source (7) configured to emit second blue LED light (8), the first phosphor element further being configured to convert the second blue LED light (8) into second red converted light (9), a first dichroic mirror (10) arranged and configured to combine the first red converted light (6) and the second red converted light (9), a third LED light source (11) configured to emit third blue LED light (12), a fourth LED light source (13) configured to emit fourth blue LED light (14), a second phosphor element (15) configured to convert the fourth blue LED light (14) into first green converted light (16), and one or more second dichroic mirrors (17; 171, 172) arranged downstream of the third LED light source (11) and the second phosphor element (15). The first dichroic mirror (10) and the one or more second dichroic mirrors (17; 171, 172) are configured to, in combination, combine the first red converted light (6), the second red converted light (9), the third blue LED light (12), and the first green converted light (16), to form system light (2).
Certain embodiments are directed to an apparatus comprising a sheet metal heat sink including: a first side; a second side substantially parallel to the first side; a third edge between the first side and the second side; a first slot forming a first corner with the third edge and substantially parallel to the first side and the second side; a second slot forming a second corner with the third edge and substantially parallel to the first side and the second side; and a tab protruding from the third edge.
A system (1) is configured to obtain component information specifying names (51-53) of components (31-33) of the lighting system, obtain user information specifying user names (59), look up a component name of a component of the lighting system in the component information, determine access rights for the component by determining whether the component name comprises a user name of the user names, and store the access rights in a memory. The system is further configured to receive a request to access the component, the request identifying a requestor (49), determine, based on the access rights for the component stored in the memory, whether the requestor is allowed to access the component, and access the component upon determining that the requestor is allowed to access the component.
The invention provides lighting system for illuminating a target surface in an agricultural environment for a flock of birds, wherein the lighting system comprises a plurality of lighting devices spaced apart on an elongated axis, wherein each lighting device comprises: a connector for electrically connecting the lighting device to a power line; a housing comprising a light exit window; at least one solid-state light source arranged within the housing, wherein the at least one solid-state light source is configured to emit light source light; wherein each lighting device is configured to shape the light source light into a light beam, and configured to emit the light beam along a main optical axis via the light exit window onto the target surface; wherein adjacent lighting devices of the plurality of lighting devices are spaced apart with a spacing (S); and wherein the light exit windows of the adjacent lighting devices are arranged at a distance (H) from the target surface; wherein each respective light beam of the adjacent lighting devices has an angular light distribution with a Full Width Half Maximum (FWHM); wherein
The invention provides lighting system for illuminating a target surface in an agricultural environment for a flock of birds, wherein the lighting system comprises a plurality of lighting devices spaced apart on an elongated axis, wherein each lighting device comprises: a connector for electrically connecting the lighting device to a power line; a housing comprising a light exit window; at least one solid-state light source arranged within the housing, wherein the at least one solid-state light source is configured to emit light source light; wherein each lighting device is configured to shape the light source light into a light beam, and configured to emit the light beam along a main optical axis via the light exit window onto the target surface; wherein adjacent lighting devices of the plurality of lighting devices are spaced apart with a spacing (S); and wherein the light exit windows of the adjacent lighting devices are arranged at a distance (H) from the target surface; wherein each respective light beam of the adjacent lighting devices has an angular light distribution with a Full Width Half Maximum (FWHM); wherein
FWHM
<
F
*
2
*
tan
-
1
(
S
2
H
)
;
The invention provides lighting system for illuminating a target surface in an agricultural environment for a flock of birds, wherein the lighting system comprises a plurality of lighting devices spaced apart on an elongated axis, wherein each lighting device comprises: a connector for electrically connecting the lighting device to a power line; a housing comprising a light exit window; at least one solid-state light source arranged within the housing, wherein the at least one solid-state light source is configured to emit light source light; wherein each lighting device is configured to shape the light source light into a light beam, and configured to emit the light beam along a main optical axis via the light exit window onto the target surface; wherein adjacent lighting devices of the plurality of lighting devices are spaced apart with a spacing (S); and wherein the light exit windows of the adjacent lighting devices are arranged at a distance (H) from the target surface; wherein each respective light beam of the adjacent lighting devices has an angular light distribution with a Full Width Half Maximum (FWHM); wherein
FWHM
<
F
*
2
*
tan
-
1
(
S
2
H
)
;
wherein FWHM is said Full Width Half Maximum (FWHM); wherein S is said spacing (S); wherein H is said distance (H); and wherein F is a factor in the range between 0.1 and 1.
F21V 21/005 - Supporting, suspending, or attaching arrangements for lighting devicesHand grips for several lighting devices in an end-to-end arrangement, i.e. light tracks
F21W 131/40 - Lighting for industrial, commercial, recreational or military use
A device for marking a reference location on a ceiling panel to facilitate cutting a ceiling opening in the ceiling panel includes a main body, a first bar attached to the main body, and a second bar moveably attached to the main body. The device further includes a protruding structure attached to the main body. The first bar and the second bar are attachable to a mounting frame such that the protruding structure is positioned at a frame opening of the mounting frame to protrude into the ceiling panel below the mounting frame.
A light emitting diode, LED, filament arrangement (1) configured to, in operation, emit LED filament arrangement light comprising one or both of first LED filament arrangement sub-light (11) and second LED filament arrangement sub-light (12), the LED filament arrangement comprising an elongated carrier (2) comprising a first major surface (21) and a second major surface (22) opposite to the first major surface, a first sub-LED filament (3) comprising a first array of a plurality of first LEDs (32) arranged on the first major surface (21) of the elongated carrier, and being configured to, in operation, provide first sub-LED filament light (31), a second sub-LED filament (4) comprising a second array of a plurality of second LEDs (42) arranged on the first major surface (21) of the elongated carrier, and being configured to, in operation, provide second sub-LED filament light (41), a third sub-LED filament (5) comprising a third array of a plurality of third LEDs (52) arranged on the second major surface (22) of the elongated carrier, and being configured to, in operation, provide third sub-LED filament light (51), and a fourth sub-LED filament (6) comprising a fourth array of a plurality of fourth LEDs (62), arranged on the second major surface (22) of the elongated carrier, and being configured to, in operation, provide fourth sub-LED filament light (61), and a controller (7) configured to individually control the first sub-LED filament (3), the second sub-LED filament (4), the third sub-LED filament (5), and the fourth sub-LED filament (6).
F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
F21Y 107/90 - Light sources with three-dimensionally disposed light-generating elements on two opposite sides of supports or substrates
F21Y 113/13 - Combination of light sources of different colours comprising an assembly of point-like light sources
A sensor system (100) and a method (1000) for weather-related condition detection are provided. The sensor system comprises a receiver (110) arranged to receive signals (120) from at least one satellite (130), and an element (200) adjacently arranged to the receiver, whereby the receiver is arranged to receive the signals through the element. The element is configured to receive water (210) from the surrounding environment. The sensor system comprises a processor (300) configured to obtain first data (400) of nominal signal strength reception of the receiver, and to obtain second data (410) of signal strength reception from the receiver based on reception of signals through the element. The processor is further configured to determine signal strength attenuation data (430) as a function of the obtained first and second data, and to detect at least one weather-related condition (500) as a function of the determined signal strength attenuation data.
1233) selected from the range of 600-660 nm; (H) each second light generating device (120) is configured to generate second device light (121) having a spectral power distribution in the wavelength range of 380-780 nm with at least 70% of the spectral power provided by the third luminescent material light (231) and at maximum 30% of the spectral power provided by the second light source light (21); and (I) in a first operational mode of the light generating system (1000), the system light (1001) is white light having a correlated color temperature in a range from 2000-6500 K and a color rendering index of at least 80.
F21K 9/64 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
According to certain embodiments, an emergency lighting/electronic device comprises: a first driver configured to receive AC power from a power outlet and provide a variable level of DC power; a second driver configured to receive AC power from a backup power source and provide a constant level of DC power; LED lights configured to provide light having a brightness based in a received level of DC power; and a switch configured to connect one of the first driver or the second driver to the LED lights based on whether the power outlet provides AC power.
The invention relates to a lighting device comprising a microwave generator for generating microwaves into a volume, wherein the microwaves are for disinfecting the volume, a lighting load for emitting light for illuminating external objects and a housing, wherein the housing encloses the volume and is configured to prevent the microwaves from passing through the housing and to pass through the light.
The invention provides a LED filament lamp comprising: an envelope enclosing a chamber sealed with a stem, wherein the stem extends into said chamber; a LED filament structure with at least two individually controllable segments; a controller configured to receive a control signal and control each of the at least two individually controllable segments based on said control signal, wherein the LED filament structure and the controller are arranged within the chamber; a driver circuit arranged outside the chamber, wherein the driver circuit comprises two powerlines extending through the stem or the envelope for powering the LED filament structure and the controller, wherein the driver circuit is configured to convey said control signal to the controller via a control line extending through the stem or the envelope.
F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
F21K 9/238 - Arrangement or mounting of circuit elements integrated in the light source
F21Y 103/10 - Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
A lighting arrangement comprises a carrier and a plurality of M-LEDs and one or more N-LEDs arranged on a carrier. The N-LEDs and the M-LEDs have different surface areas according to a ratio that is equal to or larger than 10. A phosphor layer covers the plurality of M-LEDs and the one or more N-LEDs. The M-LEDs are configured to emit blue first LED light and the one or more N-LEDs are configured to emit second blue LED light. The phosphor layer is configured to at least partly convert first and second LED light into first and second converted light, respectively. The carrier comprises elevations extending from a carrier base level, on which elevations the M-LEDs are arranged, whereas the N- LEDs are not arranged on the elevations. The phosphor layer above the M-LEDs and the N- LEDs have different thickness.
H10H 29/24 - Assemblies of multiple devices comprising at least one light-emitting semiconductor device covered by group comprising multiple light-emitting semiconductor devices
A method comprises obtaining (101) an input signal indicative of a light effect, determining (103) a light effect transition based on the light effect, determining (105) a type of the light effect transition, and determining (107) whether to apply a first sequence or a second sequence depending on whether the type is included in a first set or in a second set. Each of the lighting units has a predefined address. Each of the addresses is included once in the first sequence and once in the second sequence. The method further comprises determining (109) light settings based on the light effect and controlling (111) the lighting units according to the light settings in the order specified in the first sequence or the second sequence. The control is perceived as being sequential when the second sequence is applied and as being non-sequential when the first sequence is applied.
The invention provides a light generating system (1000), configured to generate system light (1001), wherein the light generating system (1000) comprises a first light generating arrangement (2000), a second light generating arrangement (3000), a first luminescent material (210), a second luminescent material (220), a diffuser arrangement (710), a control system (300), and optics (500). In embodiments, the optics (500) comprise a first beam divider (TR1), a second beam divider (TR2), a first beam combiner arrangement (C1), a second beam combiner arrangement (C2), a third beam combiner arrangement (C3), and a main beam combiner arrangement (590). The control system (300) is configured to control the spectral power distribution of the system light (1001) by controlling the first light generating arrangement (2000) and the second light generating arrangement (3000).
G02B 27/28 - Optical systems or apparatus not provided for by any of the groups , for polarising
F21K 9/64 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
F21V 13/00 - Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups
F21Y 113/10 - Combination of light sources of different colours
: A method for determining a light status of a target luminaire within a set of luminaires. Each luminaire comprises a light emitting portion and an at least one ambient light sensor. The method comprises, in response to an indication that the target luminaire is offline, receiving a current illumination value, measured by the at least one ambient light sensor of a neighboring luminaire adjacent to the target luminaire. The current illumination value is compared to a reference illumination value to determine the light status of the target luminaire. The light status comprises at least a predictive indicator of whether or not the target luminaire is outputting light.
H05B 47/11 - Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
H05B 47/20 - Responsive to malfunctions or to light source lifeCircuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant for protection
A mechanism for provisioning a device using a (mesh) network. A device that wishes to be provisioned by and/or connect to the network broadcasts a first communication containing information responsive to a first product identifier. A network device processes the information to determine whether the broadcasting device is permitted to join the network and/or be otherwise provisioned. Responsive to a positive determination, a communication is sent to a provisioning server, external to the network, to generate provisioning information for the originally broadcasting device.
A LED filament (1) comprising: - an elongated carrier (2) with a width, W1, - a first elongated encapsulant (4a) with a height, H1, covering the first major surface (2a) of the elongated carrier (2) and enclosing the plurality of LEDs (3) arranged on the elongated carrier (2), - a second elongated encapsulant (4b) with a height, H2, covering a second major surface (2b), opposite to said first major surface (2a), - a first elongated recess (5a) with a height, H3, and a depth, D1, located at the periphery of the LED filament (1) between the first elongated encapsulant (4a) and the first major surface (2a) of the elongated carrier (2), wherein 0.1≤H3/H1≤0.7 and 0.2≤(W1- 2*D1)/W1≤0.7 and/or - a second elongated recess (5c) with a height, H4, and a depth, D2, located at the periphery of the LED filament (1) between the second elongated encapsulant (4b) and the second major surface (2b) of the elongated carrier (2), wherein 0.1≤H4/H2≤0.7 and 0.2≤(W1- 2*D2)/W1≤0.7.
F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
A power supply system arranged for driving a load, said power supply system comprising a rectifier arranged for receiving an AC mains voltage and for converting said AC mains voltage to a DC voltage, a Power Factor Correction, PFC, stage, connected to an output of said rectifier and arranged for improving a power factor of said power supply system, a DC/DC converter, connected to an output of said PFC stage, and arranged for receiving a DC voltage from said PFC stage and for converting said received DC voltage to a DC output for driving said load, wherein said PFC stage comprises an inductor, said inductor comprising a magnetic core, windings wound around said magnetic core such that magnetic flux, induced by current flowing through said windings, circulates through said magnetic core, wherein said magnetic core comprises a first magnetic core part having a first magnetic permeability, a second magnetic core part having a second magnetic permeability, different to said first magnetic permeability, wherein said magnetic flux circulates through said first and second magnetic core parts.
The invention relates to a driver for driving a load. The driver comprises a primary side comprising a first input and a second input adapted to be coupled to a Line and a Neutral for receiving an input voltage, between the Line and Neutral, from a power source, a rectifier for rectifying the input voltage into a rectified input voltage, wherein the rectified input voltage is present at a first rectifier output and a second rectifier output, a switching circuit comprising a first switch and a second switch coupled in series and coupled between the first rectifier output and the second rectifier output, wherein a first node is at the interconnection of the first switch and the second switch, a secondary side comprising an output for providing an output voltage to the load, wherein the primary side and the secondary side are galvanically isolated from each other, a switched mode power converter for converting the rectified input voltage into the output voltage. The switched mode power converter comprises a transformer coupled between the primary side and the secondary side, a capacitor, wherein one end of the capacitor is coupled to the first node and another end of the capacitor is coupled to a further node at the secondary side. The driver comprises a controller for controlling the switching circuit, wherein the controller is arranged to control the switching circuit to close the first switch and open the second switch when the input voltage is negative, open the first switch and close the second switch when the input voltage is positive.
A computer-implemented indoor urban heat index (UHI) effect prediction method includes receiving weather information of an area and predicting a predicted solar light level in the area at least based on the weather information of the area. The method further includes receiving sensed indoor air quality data and predicting predicted indoor air quality data of an indoor space in the area at least based on the sensed indoor air quality data. The method also includes predicting indoor UHI effect at the indoor space at least based on the predicted solar light level and the predicted indoor air quality data.
A system is configured to determine, based on received input, whether a latency (58,78) between one or more light sources rendering light effects (61-67), determined based on characteristics of audio content, and an audio rendering device rendering a corresponding portion of the audio content will likely exceed a threshold and determine a degree of smoothing (59,79) based on whether the latency will likely exceed the threshold. The degree of smoothing is higher if the latency will likely exceed the threshold than if the latency will likely not exceed the threshold. The system is further configured to determine the light effects based on the characteristics of the audio content while applying smoothing according to the determined degree of smoothing and control the one or more light sources to render the light effects while the audio content is being rendered on the audio rendering device.
The disclosure proposes an improved directional lighting device (10) comprising a supporting structure (11); a ball-joint structure (12) mounted to the supporting structure (11); a housing (13) configured to accommodate a light emitting source (14); electric wiring (15) fed from the supporting structure (11) through the ball-joint structure (12) and electrically connecting the light emitting source (14); the ball-joint structure (12) configured to direct the housing (13) relative to the supporting structure (11) and the light emitting source (14).
The invention provides a method for manufacturing a matrix assembly of interconnected lenses (20) comprising a plurality of lenses (22) arranged in a first direction (11) and a second direction (12) perpendicular to the first direction (11), by means of 3D printing using a 3D printer (500), wherein the matrix assembly of interconnected lenses (20) comprises a plurality of subassemblies of interconnected lenses (21), each subassembly of interconnected lenses (21) comprising a subset of the plurality of lenses (22) interconnected in the first direction (11), the plurality of subassemblies of interconnected lenses (21) being interconnected in the second direction (12) in at least one position. Each lens of the plurality of lenses (22) comprises a light input surface (221) and a light output surface (222), wherein the light output surface is at least partly convex, and the light input surface is at least partly concave, wherein the matrix assembly of interconnected lenses (20) comprises one or more open spaces (23), each open space (23) being located in between two subassemblies of interconnected lenses (21) of the plurality of subassemblies of interconnected lenses (21), a surface area (231) of the one or more open spaces (23) being at least 30% of a surface area (201) of the matrix assembly of interconnected lenses (20), and wherein the 3D printer (500) comprises a vessel (510) for holding a 3D printable material (511) being polymerizable at a curing wavelength, a light emitting element (520) and a light modulating element (522) for exposing the 3D printable material (511) to patterned light comprising the curing wavelength, and a carrier platform (530) using an elevator mechanism (540) to advance a distance between the carrier platform (530) and the light emitting element (520) to form successive layers of 3D printed material (223) by exposing each layer of 3D printable material (511) to the patterned light. The method comprising printing the matrix assembly of interconnected lenses (20) by printing a stack of layers (223) having a stacking direction extending in parallel to the first direction (11) such that successive layers (223) of 3D printed material are oriented in the second direction (12).
B29D 11/00 - Producing optical elements, e.g. lenses or prisms
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
A LED filament (1) comprises an elongated carrier (20), a two-dimensional array of a plurality of LEDs (32), a first elongated encapsulant (50) and a matrix driving circuit (40). The two-dimensional array comprises N≥2 rows (36) of LEDs and M≥10 columns (34) of LEDs. The first elongated encapsulant covers the plurality of LEDs and comprises a luminescent material and/or a light scattering material to convert LED light into converted light and/or scatter LED light into scattered light, forming the LED filament light. The matrix driving circuit comprises rows and columns of LED electrodes and a plurality of LED switches (46) connected to the LED electrodes. Each LED being switched by a respective LED switch. The LED filament light is white light having a correlated color temperature in a range from 1700 K to 6500 K and a color rendering index of at least 70.
A light-emitting diode, LED, filament lighting device (1) is disclosed. The LED filament lighting device (1) comprises an elongated carrier substrate (2) comprising at least one ceramic material, wherein the carrier substrate (2) has at least a first surface (6) and a second surface (7) opposite to the first surface (6). The LED filament lighting device (1) comprises a plurality of solid-state light sources (3, 4, 5) configured to, in operation, emit light, wherein the plurality of solid-state light sources (3, 4, 5) is arranged in an array on the second surface (7) of the carrier substrate (2). The LED filament lighting device (1) comprises a thermally conductive layer (8) arranged at at least a portion of the first surface (6) of the carrier substrate (2), wherein at least a portion of the thermally conductive layer (8) comprises a first material that is graphene-based and a second material that is metal-based.
The present disclosure relates to a horticultural lighting method and corresponding system. The horticultural lighting method to cultivate plants comprises: generating overhead lighting; and controlling the overhead lighting by restricting a red light component in the overhead lighting to below a predetermined intensity threshold, above which at least a portion of the plants is prone to discoloration. The method further comprises generating inter-canopy lighting; and controlling at least the inter-canopy lighting by increasing intensity of the red light components therein to at least approximately compensate for restricting of the red light component in the overhead lighting.
The invention, in the field of light emitting diode, LED, lighting, relates to a color point tunable LED filament arrangement (1) with an off-state white appearance, with improved efficiency. A first and a second LED filament (10, 20) comprise a white encapsulant (17, 14). The white encapsulants (17, 14) comprise scattering material (18, 25) in a translucent material (19, 26). The concentrations of scattering material (18, 25) in the white encapsulants and/or the thicknesses of the white encapsulants are not the same for the first and second LED filament (10, 20). The invention also relates to a lighting device (100) and a luminaire comprising such a LED filament arrangement (1).
F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
The invention provides a method for producing a 3D item (1) by means of fused deposition modelling, wherein: (A) the method comprises layer-wise depositing 3D printable material (201) to provide the 3D item (1) comprising a plurality of layers (322) of 3D printed material (202): (B) the 3D printable material (201) comprises (i) first 3D printable material (1201) comprising a fluoropolymer (1403) in a first outer region (1270) (of the first 3D printable material (1201)) enclosing a first inner region (of the first 3D printable material (1201)), and (ii) second 3D printable material (2201) free from a fluoropolymer (1403) in a second outer region (2270) (of the second 3D printable material (2201)) enclosing a second inner region (of the second 3D printable material (2201)); and (C) (a) in one or more first sections (280) of two adjacent layers (322) at least one of the layers (322) comprises first 3D printed material (1202) comprising the fluoropolymer (1403) in the first outer region (1270) (of the 3D printed material (202)), and (b) in one or more second sections (290) of two adjacent layers (322) the adjacent layers (322) both comprise second 3D printed material (2202) free from the fluoropolymer (1403) in the second outer regions (2270) (of the 3D printed material (202)).
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
A security system (100) and method (500) for estimation of intrusion by an object (110) in a space (120) are provided. The security system comprises a processor (130), configured to obtain information of the illumination of a first subspace (140) of the space having a first level of illumination, I1, within a first light intensity interval, R1, and to obtain information of the illumination of a second subspace (200) of the space, being spatially separated from the first subspace and having a second level of illumination, I2, within a second light intensity interval, R2, wherein max (R1)LP2.
G08B 13/189 - Actuation by interference with heat, light, or radiation of shorter wavelengthActuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
An optical wireless communication device (200) comprising: a data transmitter (201) configured to transmit an optical data signal; a masking transmitter (202) configured to transmit an optical masking signal; wherein the optical masking signal comprising a wavelength component substantially identical to a wavelength component of the optical data signal; the device (200) configured to set a certain distance (d) by controlling at least one of the data transmitter (201) and the masking transmitter (202), such that a coverage area (210) of the optical data signal is overlapped with a coverage area (220) of the optical masking signal to a certain extent at the certain distance ( ) keeping a signal to noise ratio of the optical data signal below a threshold and complicating a recovery of the optical data signal by another device located at and beyond that certain distance (d).
The invention provides a light generating system (1000) comprising a light generating device (100) and a lens-based optical element (400), wherein: the light generating device (100) is configured to generate device light (101); the lens-based optical element (400) comprises a first side (401) configured to receive at least part of the device light (101), and a second side (402), configured downstream of the first side (401), wherein at the first side (401) the lens-based optical element (400) comprises a first arrangement comprising a plurality of first lenses (410), configured in a light-receiving relationship with the light generating device (100), and having first focal distances (f1), wherein at the second side (402) the lens-based optical element (400) comprises a second arrangement comprising a plurality of second lenses (420) configured downstream of the first lenses (410), and having second focal distances (f2): wherein f1
The invention provides a system (1000) comprising a printed circuit board (500), wherein: (a) the printed circuit board (500) comprises one or more electrically conductive tracks (200); the printed circuit board (500) comprises a first side (501) and a second side (502); wherein the printed circuit board (500) comprises a main part (510) and an auxiliary part (520); wherein the main part (510) is configured to host one or more electrical components (100), functionally coupled to at least one of the one or more electrically conductive tracks (200); wherein the main part (510) comprises a through hole (550), wherein the through hole (550) at least partially encloses the auxiliary part (520); (b) the printed circuit board (500) comprises a breakaway structure (530) configured between the auxiliary part (520) and the main part (510); wherein the breakaway structure (530) is configured to facilitate disconnection of the auxiliary part (520) from the main part (510); (c) the main part (510) comprises a first connecting hub (251) and a second connecting hub (252), both configured at the first side (501), and configured at opposite sides of the through hole (550); wherein at least one of the first connecting hub (251) and the second connecting hub (252) is electrically connected to at least one of the one or more electrically conductive tracks (200); (d) the auxiliary part (520) comprises a third connecting hub (253), configured at the first side (501), and configured between the first connecting hub (251) and the second connecting hub (252); (e) the printed circuit board (500) is functionally connectable to (i) a front-facing connector unit (610) in a front-facing connector configuration (600), wherein the front-facing connector unit (610) is connected to (a) the first connecting hub (251) or second connecting hub (252) and (b) the third connecting hub (253), and (ii) a back-facing connector unit (710) in a back-facing connector configuration (700), wherein the auxiliary part (520) is absent, and wherein the back-facing connector unit (710) is partly configured in the through hole (550) and connected to the first connecting hub (251) and the second connecting hub (252).
The present invention relates to a light emitting device (1) comprising a substrate (2) comprising a plurality of individually controllable light sources (3) adapted for, in operation, emitting light, and at least one insert (4) comprising at least partially light-blocking material and having a longitudinal extension being parallel to the substrate (2). The insert (4) comprises a plurality of transverse elements (5) having a proximal end (5′) arranged in proximity of the substrate (2) and a distal end (5″) arranged at a distance from the proximal end (5′). The transverse elements (5) are substantially perpendicular to the substrate (2), the plurality of transverse elements (5) dividing the substrate into at least a first segment (6′) comprising a first group of the light sources (3′), a second segment (6″) comprising a second group of the light sources (3″), and a third segment (6′″) comprising a third group of light sources (3′″).
A mesh network configuration algorithm is described herein where the mesh network configures itself to minimize rebroadcasting. The disclosed embodiments provide a mechanism by which nodes in a network (e.g., wireless mesh network) may enable/disable rebroadcasting on their own without explicit request from a commissioning agent or network manager. A network node receives a rebroadcast activation query from a plurality of network nodes, selects a network node to activate for rebroadcasting, and sends a message to the activated node.
A light generation system (1) providing, in operation, system light and comprising a first laser light source (2) configured to generate a first light beam (9) being emitted in and having a main optical axis extending in a first direction (D1), a second laser light source (3) configured to generate a second light beam (10) being emitted in and having a main optical axis extending in a third direction (D3), a wavelength conversion unit (4) being configured to convert the second light beam (11) into a converted light beam (12) being emitted in a fourth direction (D4), and comprising a wavelength conversion member (29) and a heat sink element (30) arranged in thermal contact with the wavelength conversion member, a beam tilting diffusor (5) configured to transmit, diffuse and tilt around a tilting angle (β) the first light beam (9) into a diffused first light beam (25) propagating in and having a main optical axis extending in a second direction (D2), the second direction (D2) being different from the first direction (D1) and extending in the tilting angle (β) with the first direction (D1), and a dichroic reflecting unit (6) being arranged downstream of the beam tilting diffusor (5) and downstream the wavelength conversion unit (4) such as to receive both the diffused first light beam (25) and the converted light beam (12), to transmit the diffused first light beam (25) in a fifth direction (D5), and to reflect the converted light beam (12) in the fifth direction (D5), or the dichroic reflecting unit (6) being arranged downstream of the beam tilting diffusor (5) such as to receive both the diffused first light beam (25) and the converted light beam (12), to transmit the converted light beam (12) in a fifth direction (D5) and to reflect the diffused first light beam (25) in the fifth direction (D5).
F21S 8/00 - Lighting devices intended for fixed installation
F21V 7/22 - Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
F21V 7/30 - Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings the coatings comprising photoluminescent substances
The invention provides a light generating system (1000) comprising a laser bank (1300), a luminescent material (200), optics (500), and a control system (300); wherein: the laser bank (1300) comprises (a) a first subset (1310) comprising nl first solid state lasers (10) configured to generate first laser light (11), (b) a second subset (1320) comprising n2 second solid state lasers (20) configured to generate second laser light (21), and (c) a third subset (1330) comprising n3 third solid state lasers (30) configured to generate third laser light (31); the luminescent material (200) is configured to convert at least part of the first laser light (11) received by the luminescent material (200) into first luminescent material light (201 '), at least part of the second laser light (21) received by the luminescent material (200) into second luminescent material light (201"), and at least part of the third laser light (31) received by the luminescent material (200) into third luminescent material light (201"'); the laser bank (1300), the luminescent material (200), and the optics (500) are configured to generate (i) a first beam of first light (1011) comprising at least part of the first luminescent material light (201 '), wherein the first beam of first light (1011) has a first optical axis (01), (ii) a second beam of second light (1021) comprising at least part of the second luminescent material light (201"), wherein the second beam of second light (1021) has a second optical axis (02), and (iii) a third beam of third light (1031) comprising at least part of the third luminescent material light (201"'), wherein the third beam of third light (1031) has a third optical axis (03); wherein the first optical axis (01), the second optical axis (02), and the third optical axis (03) are configured mutually diverging; and the control system (300) is configured to control the first subset (1310), the second subset (1320), and the third subset (1330).
F21S 41/176 - Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
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
F21V 9/30 - Elements containing photoluminescent material distinct from or spaced from the light source
58.
LIGHT GENERATING SYSTEM COMPRISING TRUNCATED BALL LENS
: The invention provides a light generating system (1000) comprising a light source array (1010) and a first lens (100), wherein the light source array (1010) comprises a plurality of light sources (10), wherein the first lens (100) is a solid truncated sphere lens (400), the truncated sphere lens (400) comprising a planar surface (110) and a rounded surface (120), wherein the planar surface (110) is arranged in a light receiving relationship with the plurality of light sources (10), wherein the rounded surface (120) is shaped according to a surface of a virtual sphere (425) having a radius (R0) and takes up at least 66% of a spherical surface (420) of the virtual sphere (425), wherein an axis (A) perpendicular to the planar surface (110) intersects the first lens (100) for a distance (d1), wherein d1 is selected from the range of 1.33*R0 – 1.90*R0.
A LED filament lamp (1) comprising a plurality of elongated LED filaments (2) adapted for, in operation, emitting LED filament light (16), and a solid, transparent, elongated rod-shaped element (3) comprising a plurality of elongated cavities (4), wherein at least one elongated LED filament (21-24) of the plurality of elongated LED filaments (2) is arranged in each elongated cavity (41-44) of the plurality of elongated cavities (4), each elongated cavity (41-44) of the plurality of elongated cavities (4) comprising an angular cross-sectional shape comprising at least three facets (61-64), each two converging facets of the at least three facets (61-64) forming a corner (51-55), each elongated cavity (41-44) of the plurality of elongated cavities (4) being arranged such that mutually adjacent elongated cavities (41, 42) are in contact at most by a respective corner (54, 55), and mutually adjacent facets (65, 66) of mutually adjacent elongated cavities (4) extend in an angle, α, with one another, the angle, α, fulfilling the relation α ≥ 2*arcsin(n0/n1), where n0 is the refractive index of the medium present in each elongated cavity of the plurality of elongated cavities (4) and n1 is the refractive index of the material of the solid, transparent, elongated rod-shaped element (3).
F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
A light-emitting diode, LED, filament luminaire (100) configured to provide, in operation, LED filament luminaire light, is provided. The LED filament luminaire comprises a plurality of LED filaments (110), first (170) and second (180) electrodes arranged at respective ends of the LED filament, and an enclosure extending along a principal axis, A. The enclosure comprises a reflective base portion (210), a reflective side wall (220), a light exit window (230), and a plurality of electrical contacts (240). Each LED filament is connected to a respective pair of electrical contacts, wherein the enclosure encloses the plurality of LED filaments and defines a mixing chamber (300) for the LED filament light, wherein the elongated encapsulant of each LED filament is arranged at least at a first minimum distance, D1, from the base portion and at least at a second minimum distance, D2, from the side wall.
A LIGHT EMITTING DIODE, LED, BASED LIGHTING DEVICE COMPRISING AT LEAST TWO LIGHT EMITTING DIODE, LED, STRINGS FOR EMITTING LIGHT, AS WELL AS A CORRESPONDING METHOD
A Light Emitting Diode, LED, based lighting device, comprising a power source, a first LED string comprising a first plurality of LEDs connected in series, wherein said first LED string is connected to said power source, a second LED string comprising a second plurality of LEDs connected in series, wherein an output of said second LED string is connected to an output of said first LED string and a one-to-many, 1:N, switch, wherein an input of said switch is connected to said power source and wherein outputs of said switch are connected to subsequent inputs of LEDs in said second LED string, respectively, such that a position of said one-to-many, 1:N, switch determines the number of LEDs in the second LED string that are powered by the power source.
H05B 45/345 - Current stabilisationMaintaining constant current
H05B 45/46 - Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
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
The present invention relates to a LED filament lamp (1) comprising a LED filament arrangement (1') for emitting a white light output, and a control unit for controlling the white light output. The LED filament arrangement (1') comprises (i) a first LED filament component (4) having a first LED light source for emitting a first white light component of a first correlated color temperature and a first color point, the first color point having a first x color coordinate and a first y color coordinate, (ii) a second LED filament component (5) having a second LED light source for emitting a second white light component of a second correlated color temperature and a second color point, the second color point having a second x color coordinate and a second y color coordinate, and (iii) a third LED filament component (6) having a third LED light source for emitting a third white light component of a third color temperature and a third color point, the third color point having a third x color coordinate and a third y color coordinate. Each of the first correlated color temperature, the second correlated color temperature and the third correlated color temperature is different from the other two. The third correlated color temperature is at least 500 K lower than each of the first correlated color temperature and the second correlated color temperature. The first color point is located below the black body locus, the second color point is located on or above the black body locus, and the third color point is located on, or below, or above the black body locus, a color point located on the black body locus being within 10 SDCM from the black body locus, a color point located below or above the black body locus being at least 10 SDCM away from the black body locus. Each of the first x color coordinate, the second x color coordinate and the third x color coordinate is different from the other two by at least a value of 0,05, and/or each of the first y color coordinate, the second y color coordinate and the third y color coordinate is different from the other two by at least a value of 0,05.
H05B 45/3577 - Emulating the dimming characteristics, brightness or colour temperature of incandescent lamps
F21S 4/28 - Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
F21Y 113/17 - Combination of light sources of different colours comprising an assembly of point-like light sources forming a single encapsulated light source
F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
F21K 9/238 - Arrangement or mounting of circuit elements integrated in the light source
63.
LED FILAMENT ARRANGEMENT COMPRISING A PLURALITY OF LED FILAMENTS
There is provided a light emitting diode, LED, filament arrangement (100) for use in a LED filament lamp (900), configured to provide LED filament arrangement light (110). The LED filament arrangement comprises at least two LED filaments (115a, 115b) comprising an elongated carrier (120), a plurality of light emitting diodes, LEDs (130), an elongated primary encapsulant (160) at least partially enclosing the plurality of LEDs, wherein the primary elongated encapsulant comprises luminescent material configured to convert the emitted LED light into converted light (170), wherein the LED filaments are arranged in series, and wherein adjacently arranged LED filaments are mechanically and electrically coupled to each other at a respective coupling region (180). The LED filament arrangement further comprises an elongated secondary encapsulant (200) at least partially wrapping around a main portion of the LED filaments and configured to at least partially transmit and reflect the LED filament light.
F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
AN ELECTRONIC DEVICE HAVING IMPROVED ELECTROMAGNETIC INTERFERENCE, EMI, SHIELDING, AS WELL AS AN ASSOCIATED LIGHT EMITTING DIODE, LED, BASED LIGHTING DEVICE
An electronic device, comprising a housing, a substrate, provided in said housing, and having a top side and a bottom side, wherein said substrate comprises at least one electronic component provided at said top side of said substrate, and an Electromagnetic Interference, EMI, foam, wherein said EMI foam is provided such that said at least one electronic component is fully enclosed by said EMI foam in combination with said substrate.
H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
H01L 23/552 - Protection against radiation, e.g. light
H01L 25/065 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
A crossarm retrofit system for a lamp of a lighting array that includes a crossarm can include a crossarm mounting system coupled to the crossarm, where the crossarm mounting system comprises a bottom component, a top component, and a coupling assembly, where the top component is configured to abut against a top surface of the crossarm, where the bottom component is configured to abut against a bottom surface of the crossarm, where the coupling assembly is configured to be disposed adjacent to a rear surface of the crossarm, and where the coupling assembly is further configured to force the top component and the bottom component to engage and secure the crossarm.
A lighting device comprises a LED light source providing LED light. A luminescent converter enclosing the LED light source comprises a first luminescent material converting the LED light into first converted light at 627-635 nm, and a second luminescent material converting the LED light into second converted light at 600-622 nm. The first luminescent material is of the type M'xM2-2xAX6 doped with tetravalent manganese. M' comprises an alkaline earth cation. M comprises an alkaline cation, x is in the range of 0-1. A comprises a tetravalent cation. X comprises a monovalent anion at least comprising fluorine. The second luminescent material is of a quantum dot type. The first and second converted light have a respective first full width half maximum ≤30 nm and ≤45 nm respectively. The device light is white light having a correlated color temperature range 1700-6500K and a color rendering index of at least 80.
F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
F21Y 105/12 - Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
Provided is a driving arrangement for an LED lighting system comprising a first LED arrangement and a second LED arrangement. Specifically, the first LED arrangement is driven by an amplitude modulation (AM) circuit, and the second LED arrangement is driven by a pulse width modulation (PWM) circuit. A controller is provided that controls the AM circuit and the PWM circuit based on a target brightness value. Accordingly, at high brightness levels, the AM circuit drives the first LED arrangement (and optionally the PWM circuit drives the second LED arrangement) to provide the target light output. At low brightness levels, only the PWM circuit is controlled to drive the second LED arrangement. Thus, high efficiency lighting is provided by the AM circuit driving the first LED arrangement, while deep dimming and a good colour consistency is provided by the PWM circuit driving the second LED arrangement.
A light generating system (1) configured to provide, in operation, system light and comprising a first laser bank (2) providing, in operation, first laser light (4), a phosphor wheel (8) with an illumination track (81, 82), comprising a light converting part (81) configured to convert at least a part of the first laser light (4) into converted light (13) having a Lambertian distribution, and a specular reflective part (82) configured to specularly reflect at least a part of the first laser light (4) into specularly reflected laser light (14), a first optical arrangement (9) configured (i) to off-axis focus the first laser light (4) onto the phosphor wheel, (ii) to collimate the converted light (13), and (iii) to off-axis collimate the specularly reflected laser light (14), a dichroic unit (10) configured to reflect the first laser light (4) towards the phosphor wheel (8) and (ii) to transmit the converted light (13) towards a beam splitting unit (11) and (iii) to transmit the specularly reflected laser light (14) towards the beam splitting unit (11) or to allow the specularly reflected laser light (14) to pass by towards the beam splitting unit (11), the beam splitting unit (11) being configured to split the specularly reflected laser light (14) and the converted light (13) such that the specularly reflected laser light (14) is transmitted through a quarter wave, ¼λ, plate (18) and focused onto a polarization maintaining reflective diffuser arrangement (15) being configured to diffuse the specularly reflected laser light (14) into diffused laser light (19), and a second optical arrangement (12) configured to combine the diffused laser light (19) and the converted light (13) into an added light beam (20) of system light.
The present disclosure relates to a horticultural lighting method to illuminate cannabis seedlings or cuttings during a propagation phase of young plants. The method comprises: lighting the seedlings or cuttings with red light and auxiliary lighting with far red light during an initial rooting period in the propagation phase of at least four days up to eleven days. An intensity level of the lighting with red light is below a threshold, at or above which threshold photosynthesis is dominant. An intensity level of auxiliary lighting with far red light is between one and up to (and beyond) 10 times the intensity level of lighting with red light. The disclosure also relates to a corresponding system to embody the method.
A lighting fixture (100) is disclosed that includes a mounting plate (11), one or more lighting modules (15) coupled to the mounting plate (11), and a heatsink (12). The heatsink includes a plurality of fins (12a) and one or more horizonal/vertical sections. The heatsink (12) is coupled to the mounting plate (11). The mounting plate (11) and the heatsink (12) are formed to include one or more apertures (14) near or around the one or more lighting modules (15). The one or more horizonal/vertical sections (12b) are positioned covering all or some portions of the one or more apertures (14) while still allowing for air flow (16) through the apertures (14) and past the one or more fins (12a). The lighting fixture (100) may be retrofit in the field to include an active cooling module (20). The active cooling module includes a fan unit (22) and a shroud (21). The shroud (21) covers at least a portion of the plurality of fins (12a).
F21S 8/08 - Lighting devices intended for fixed installation with a standard
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 29/76 - 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 29/77 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-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 17/10 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
F21V 23/02 - Arrangement of electric circuit elements in or on lighting devices the elements being transformers or impedances
F21W 131/103 - Outdoor lighting of streets or roads
F21Y 105/10 - Planar light sources comprising a two-dimensional array of point-like light-generating elements
Described herein are systems and methods for inpainting an image, including drawing onto the image using a brush with a rescaled size. The size of the brush is rescaled based on the depth value at one or more cursor positions on the image. The depth value is determined from a depth map, indicating depth values at different points within the image. The depth map may be determined a number of different ways, including: using a depth measuring sensor; using a stereo; and using machine learning (ML). The brush may be rescaled by dividing an initial brush size by the depth value of a cursor position as the cursor moves to one or more other cursor positions on the image.
G06F 3/04812 - Interaction techniques based on cursor appearance or behaviour, e.g. being affected by the presence of displayed objects
G06F 3/04845 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range for image manipulation, e.g. dragging, rotation, expansion or change of colour
p1p2p3p1p2p3cLcLp1cLp2cLp3p3 - 15 nm; (D) the luminescent material (200) and, the second solid state laser devices (120), and the third solid state laser devices (130) are configured such that during operation of the second solid state laser devices (120) and the third solid state laser devices (130) the second laser light (121) and the third laser light (131) bypasses the luminescent material (200); (E) the light generating system (1000) is configured to provide in a first operational mode of the light generating system (1001) white system light (1001) comprising the luminescent material light (201), the second laser light (121), and the third laser light (131); and (F) the optics (500) are configured to one or more of (a) mix different light contributions to the system light (1001), and (b) beam shape the system light (1001).
F21V 9/32 - Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
F21V 13/00 - Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups
F21V 23/04 - Arrangement of electric circuit elements in or on lighting devices the elements being switches
F21Y 105/16 - Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
A method for conditionally transmitting a prompt as input to a large language model, and for using an output of said large language model to control a lighting system. The method comprising the steps of: receiving a textual user input indicative of an intention to control one or more devices of the lighting system, analyzing said textual user input to determine at least one characteristic of said textual user input, determining a level of complexity of said textual user input based on said at least one characteristic, and only if said level of complexity is above a first complexity threshold, generating a prompt, said prompt comprising at least said textual user input, and transmitting said prompt to said large language model via an output interface, receiving the output of said large language model and controlling said lighting system according to said output.
A linear luminaire including a u-shaped housing, a circuit board, a primary diffuser, and an intermediate diffuser is provided. The u-shaped housing includes a linear portion and a corner portion. The corner portion is configured to be mechanically coupled to a second linear luminaire. The circuit board is arranged within the u-shaped housing and includes light sources. The primary diffuser is arranged along an open side of the u-shaped housing. The intermediate diffuser is arranged between the circuit board and the primary diffuser to scatter light from the light sources before the light reaches the primary diffuser. The reflector may be disposed within the u-shaped housing and may be substantially u- shaped. The intermediate diffuser may include diffuser holes horizontally offset from each of the plurality of light sources. The intermediate diffuser is arranged proximate to the corner portion of the u-shaped housing.
F21S 2/00 - Systems of lighting devices, not provided for in main groups or , e.g. of modular construction
F21S 4/28 - Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
X2-2X66 doped with tetravalent manganese, wherein M' comprises an alkaline earth cation, wherein M comprises an alkaline cation, wherein A comprises a tetravalent cation, and wherein X comprises a monovalent anion, at least comprising fluorine (F); wherein the second luminescent material (220) is configured to convert a second part of the light source light (11) received by the second luminescent material (220) into second luminescent material light (221); and wherein the second luminescent layer (2200) comprises at least 1.2 times an amount of the second layer luminescent material (2220) needed to transmit at most 2% of the light source light (10) received by the second luminescent layer (2200); and (iv) the light generating system (1000) is configured to generate, in a first operational mode of the light generating system (1000), system light (1001) comprising the first luminescent material light (211) and the second luminescent material light (221), wherein the system light (1001) has a correlated color temperature selected from the range of 1300-2700 K.
F21K 9/64 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
F21V 9/38 - Combination of two or more photoluminescent elements of different materials
A hail detection and analysis method includes performing, by a processor of an outdoor luminaire (102, 300), a hail detection at least based on sounds captured by one or more microphones of the outdoor luminaire. The processor is configured to execute a first artificial intelligence (AI) model to classify the sounds to detect hail. The method further includes estimating, by the processor, a severity level of the hail at least based on a terminal velocity of hail stones of the hail and an intensity level of the hail. The terminal velocity of the hail stones and the intensity level of the hail are determined based on at least radar signals emitted by one or more radar devices of the outdoor luminaire. The processor is configured to execute a second AI model to estimate the severity level of the hail.
H05B 47/115 - Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
H05B 47/12 - Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by detecting audible sound
F21V 23/04 - Arrangement of electric circuit elements in or on lighting devices the elements being switches
F21V 33/00 - Structural combinations of lighting devices with other articles, not otherwise provided for
G01S 13/95 - Radar or analogous systems, specially adapted for specific applications for meteorological use
78.
TUNABLE CCT MAXIMUM OUTPUT LASER-PHOSPHOR ENGINE WITH TWO LASER BANKS
The invention provides a light generating system (1000) comprising light generating devices (100), a luminescent material arrangement (2000), a diffuser arrangement (7000), optics (500), a polarization control system (600), and a control system (300); wherein: (A) the light generating devices (100) comprise (i) a first light generating device (110) configured to generate first device light (111), and (ii) a second light generating device (120) configured to generate second device light (121); (B) the luminescent material arrangement (2000) comprises a luminescent material (200) configured to convert at least part of first device light (111) and/or second device light (121) received by the luminescent material (200) into luminescent material light (201); (C) the diffuser arrangement (7000) comprises a diffuser (700) configured to diffuse first device light (111) received by the diffuser (700) into diffused device light (701); (D) the optics (500) comprise a first polarizing beam splitter (510) configured such that the first device light (111) and the second device light (121) received by the first polarizing beam splitter (510) comprise polarized light; (E) the first polarizing beam splitter (510) is configured (i) to transmit or reflect light received by the first polarizing beam splitter (510) and comprising a first linear polarization and (i) to reflect or transmit light received by the first polarizing beam splitter (510) and comprising a second linear polarization, different from the first linear polarization; (F) the polarization control system (600) is configured to control a polarization of the first device light (111) reaching the first polarizing beam splitter (510); (G) the optics (500) and the second light generating device (120) are configured such that (i) at least 90% of the second device light (121) received by the first polarizing beam splitter (510) is directed towards the luminescent material arrangement (2000), and (ii) in a first operational mode, in dependence of the polarization, at least part of the first device light (111) received by the first polarizing beam splitter (510) is directed towards the luminescent material arrangement (2000) and at least another part of the first device light (111) received by the first polarizing beam splitter (510) is directed towards the diffuser arrangement (7000); (H) the light generating system (1000) is configured to provide system light (1001) comprising one or more of at least part of the luminescent material light (201) and at least part of the diffused device light (701); and (I) the control system (300) is configured to control the system light (1001).
F21K 9/64 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
F21V 9/14 - Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing polarised light
F21V 9/30 - Elements containing photoluminescent material distinct from or spaced from the light source
A lighting system, comprising a power supply connectable to an Alternating Current, AC, mains voltage, said power supply being arranged for converting said AC mains voltage into a Safety Extra Low Voltage, SELV, being lower than said AC mains voltage, a structurally pliable power distribution system electrically connectable to said power supply and arranged for distributing said SELV to one or more luminaires, a luminaire, comprising a lamp socket arranged for receiving an AC mains powered lamp and/or a substrate having an AC mains powered luminaire and an upconverter arranged for upconverting said SELV, received from said power distribution system, into an upconverted voltage being higher than said SELV, for providing said upconverted voltage to electrical contacts in said lamp socket and/or to electrical contacts connected to said AC mains powered luminaire.
Provided is an arrangement for determining a switch node resonant frequency of a synchronous converter (i.e. a high frequency buck or boost converter). The arrangement comprises a comparator configured to determine the difference between a peak voltage on a switch node and a voltage on a bus node. A controller is also provided, which, based on the determined difference, adjusts the peak voltage on the switch node to be equal to the voltage on the bus node. This is achieved by controlling a low side gate drive and a high side gate drive to adjust a switching regime of a high side switch and a low side switch of the synchronous converter. In some cases, the switch node resonant frequency may be determined based on the switching frequency of the low side switch when the magnitude of the peak voltage on the switch node just reaches the bus voltage during one switching cycle. By determining the switch node resonant frequency, a feedforward control scheme of the synchronous controller may be implemented with improved efficiency.
H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
H02M 3/00 - Conversion of DC power input into DC power output
H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
A system and methods are provided for spatial analysis that involves estimating a number of occupants in a room. This may include a motion sensor configured to generate motion samples, a microphone configured to generate audio samples, and a communication interface configured to communicate with a computing system. The systems and methods involve detecting motion events from the motion samples to determine a first estimated number of occupants in the room, analyzing the audio samples to derive a second estimated number of occupants in the room, and comparing the first estimated number to the second estimated number. As a result, an output is generated that includes a number of occupants in the room in response to the comparison.
G10L 25/51 - Speech or voice analysis techniques not restricted to a single one of groups specially adapted for particular use for comparison or discrimination
G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
G01P 13/00 - Indicating or recording presence or absence of movementIndicating or recording of direction of movement
G06M 1/27 - Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum
83.
MODEL-BASED DECISION FEEDBACK DETECTION FOR OPTICAL COMMUNICATION
This invention relates to a receiver configured to exploit physical phenomena of a memory in an electro-optical converter of an emitter (e.g., LED) at a transmitting end. The memory can be described as a state that is a function of an input signal of the emitter, while the emitted light is a function of the state. An incoming symbol bit sequence and corresponding state(s) of the electro-optical converter are estimated (e.g., in terms of time varying carrier concentration or charge in a quantum well) to derive a decision for a state of a received symbol. This estimation can be done for multiple levels of incoming data (e.g., at least for hypothesized binary values).
A mechanism for powering two loads of a load circuit. The power drawn by each load is controlled by a respective control circuit. The control circuits operate at different frequencies. The mechanism includes an isolating circuit for isolating the power flow to the second load from the difference between the frequencies of the control circuits.
A method (800) for performing a polling procedure to collect information on a state, an attribute, or a setting of an individual node in a connected network (100); the method (800) comprising sending a request (S801), by a first node (110) in the connected network (100) to a second node (121-12n) in the connected network (100), with the request comprising an expected reply on the state, attribute, or setting of the second node (121-12n); sending a response (S803), by the second node (121-12n) to the first node (110), with the response comprising information on an actual state, attribute, or setting of the second node (121-12n), when the actual state, attribute, or setting is different from the expected reply (S802); and refraining from sending (S804) a response by the second node (121-12n) when the actual state, attribute, or setting of the second node (121-12n) is same as the expected reply (S802).
H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
H04L 43/103 - Active monitoring, e.g. heartbeat, ping or trace-route with adaptive polling, i.e. dynamically adapting the polling rate
H04L 43/0817 - Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
The invention provides a LED filament arrangement comprising a printed circuit board and at least one flexible LED filament having a respective length and providing, in operation, LED filament light; wherein the printed circuit board comprises: a front surface arranged on a first side of the printed circuit board; a back surface arranged on a second side of the printed circuit board, the second side being opposite to the first side; an electronic circuit arranged on the front surface of the printed circuit board and configured to convey, in operation, power to the at least one flexible LED filament; at least one opening extending through the printed circuit board from the first side to the second side; wherein each flexible LED filament of the at least one flexible LED filament extends through one or two openings of the at least one opening; wherein each flexible LED filament of the at least one flexible LED filament is partly arranged on the second side of the printed circuit board; wherein each flexible LED filament of the at least one flexible LED filament is mechanically and electrically connected to the electronic circuit on the front surface of the printed circuit board.
F21K 9/233 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
F21Y 107/70 - Light sources with three-dimensionally disposed light-generating elements on flexible or deformable supports or substrates, e.g. for changing the light source into a desired form
A LIGHT EMITTING DIODE, LED, BASED LIGHTING SOURCE, COMPRISING A PLURALITY IN SERIES CONNECTED CONTROLLERS IN A STRING, AS WELL AS A CORRESPONDING METHOD AND CONTROLLER
A Light Emitting Diode, LED, based lighting source, comprising a plurality in series connected controllers in a string, wherein each of said plurality of in series connected controllers is arranged for controlling one or more LEDs and wherein each of said controller is arranged for receiving, from a previous controller in said string, data at an input of said respective controller, extracting, from said received data, control data intended for controlling respective one or more LEDs of said respective controller, forwarding, to a next controller in said string, data at an output of said respective controller, wherein the LED based lighting source further comprises filters placed at each of said outputs of said controllers, respectively, for filtering data being forwarded to said next controller, wherein each filter is at least a 2nd order filter.
A lighting system comprises a plurality of spaced of light bars (22) each having first and second connection pads (26a, 26b) for receiving electrical power. An interconnecting strip (30) extends across the light bars (22) for providing electrical power connections to the connection pads (26a, 26b). The interconnecting strip (30) comprises a first line (32a) of connection terminals (34) extending along a first edge and a second line (32b) of connection terminals (34) extending along an opposite second edge, wherein the pitch (p1) between connection terminals (34) is smaller than a pitch (p2) between the light bars (22). The first and second lines of connection terminals (34) each form a toothed structure. This provides flexibility in the spacing of the light bars.
F21S 2/00 - Systems of lighting devices, not provided for in main groups or , e.g. of modular construction
F21S 4/20 - Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
F21V 23/06 - Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices
H01R 12/77 - Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
F21V 19/00 - Fastening of light sources or lamp holders
F21Y 103/10 - Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
F21Y 105/16 - Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
p1p2p2) selected from the range of 430-490 nm; (C) the optics (500) comprises (i) a first optical element (510), configured downstream of the first laser light source (110), and (ii) a second optical element (520), configured downstream of the first optical element (510); (D) the luminescent material (200) is configured downstream of the first optical element (510), wherein the luminescent material (200) is configured to convert at least part of the first laser light (111) into luminescent material light (201), such that at least part of the luminescent material light (201) propagates to the second optical element (520); wherein one of the following applies: (i) the first optical element (510) is configured to (a) at least partially transmit the first laser light (111), (b) at least partially reflect the luminescent material light (201); (ii) the first optical element (510) is configured to (a) at least partially reflect the first laser light (111), (b) at least partially transmit the luminescent material light (201); (E) the diffuser element (400) is configured downstream of the second laser light source (120), wherein the diffuser element (400) is configured to transmit and diffuse at least part of the second laser light (120) such that diffused laser light (401) propagates to the second optical element (520); (F) the second optical element (520) is configured to combine at least part of the luminescent material light (201) and at least part of the diffused laser light (401) into a same optical path; and (G)the light generating system (1000) is configured to generate system light (1001) comprising at least part of the luminescent material light (201) and at least part of the diffused laser light (401).
A method for communicating between a controller (1) having a controller ID and an intended node (2) of a wireless network, comprising determining a distance, D, between the controller (1) and the intended node (2), using non-UWB distance detection, broadcasting a message (22) including the distance, D, and the controller ID, completing a UWB ranging process (23a, 23b) with all nodes (2, 3) that received the message (22). Each node will compare the UWB ranging distance with the detected distance D, and respond to the message if it is established that a difference between the UWB ranging distance and the distance, D, is smaller than a given threshold. With the present invention, UWB distance ranging is combined with non- UWB distance detection used for identifying an intended network node among several potential network nodes.
H04W 4/02 - Services making use of location information
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
91.
A METHOD PERFORMED BY A CONTROLLER TO COMMUNICATE WITH A NODE DEVICE
A method performed by a controller to communicate with a node device in a wireless network comprising an access point, wherein the node device is configured to periodically be in a wake-up state while at other times be in a sleep state, wherein the access point is configured to periodically transmit beacon messages with a periodicity matching the periods of time in which the node device is in the wake-up state and the sleep state. The controller receives a beacon message from the access point, and, upon receipt of the beacon message, transmits a command message, the command message including a command to control operation of the device.
A system and method for estimating a time of day. A signal responsive to an amount of ambient infrared radiation detected by an infrared sensor is received and processed to estimate the time of day.
A method of determining light settings based on an image and controlling one or more lighting devices located in an environment according to the light settings comprises obtaining (101) one or more static parameters which are indicative of one or more colors, obtaining (103) a textual description describing an environmental context of the environment, generating (105) an image based on the one or more static parameters and the textual description, determining (107) the light settings by extracting colors from the image, and controlling (109) the one or more lighting devices according to the light settings.
F21V 7/24 - Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
F21W 131/103 - Outdoor lighting of streets or roads
F21Y 105/16 - Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
A lighting system, comprising one or more lighting devices and a controller configured to control operation of the one or more lighting devices, is disclosed. The controller is configured to control operation of at least one of the lighting device(s) based on position and/or orientation of at least a portion of a person's or user's body relatively to the lighting device(s), where the said position and/or orientation is derived from sensor output of one or more sensors worn by a person or user.
H05B 47/105 - Controlling the light source in response to determined parameters
H05B 47/115 - Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
H05B 47/19 - Controlling the light source by remote control via wireless transmission
A61M 21/00 - Other devices or methods to cause a change in the state of consciousnessDevices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
F21S 10/00 - Lighting devices or systems producing a varying lighting effect
A method for automatically controlling at least a color and/or a color temperature in an environment (10) comprising a lighting system (200) with controllable lighting devices (11-16), wherein the controllable lighting devices (11-16) comprise light sources (110-112; 120-122; 130-133; 140-142; 150-152; 160-163) forming a plurality of sets of primaries. The method comprises determining (300) a first color and/or a first color temperature of the light emitted by an active first set of primaries, determining (320) one or more second set of primaries, the one or more second set of primaries being configured to emit light having a second color and/or a second color temperature and being different from the first set of primaries, determining (340) a user activity in the environment (10), determining (350) an energy consumption of each of the one or more second set of primaries when emitting light, and selecting (360) a second set of primaries based on the determined energy consumption and user activity, the selected second set of primaries being determined to have a determined energy consumption being lower than the energy consumption of the first set of primaries, and switching (370) from the first set of primaries to the selected second set of primaries.
A method of facing direction and fall detection using a lighting system includes receiving, by a first luminaire and a second luminaire, a sound produced by a person in an area. The method further includes determining spatial directivity signatures of the sound based on sound levels of the sound as received by at least the first luminaire and the second luminaire, where the sound levels of the sound are at at least two frequencies of the sound. The method also includes estimating a facing direction of the person based on the spatial directivity signatures of the sound by executing an artificial intelligence (AI) model trained using spatial directivity signature data labelled with facing directions.
G01S 5/18 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
G08B 21/04 - Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
A mechanism for controlling a synchronous converter comprising two switches that connect to a switch node. A first switch connects the switch node to a first node. A second switch connects the switch node to a ground or return path. An inductor connects the switch node to a second node. In a low load mode of operation, one of the two switches is activated to cause the inductor to charge. The switches are then deactivated to cause the voltage at the switch node to approach the voltage of either the first node or the ground or return path, dependent upon which switch was activated during charging of the inductor. The switches are then controlled to allow the voltage at the switch node to oscillate one or more times.
H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
The invention provides a light generating system (1000) comprising a lighting module (1500), wherein the lighting module (1500) comprises a skylight module; wherein the lighting module (1500) comprises one or more light generating devices (100), a first light escape area (1510), a second light escape area (1520), and a light escape area (1530); wherein: the one or more light generating devices (100) are configured to generate device light (101); the first light escape area (1510) and the second light escape area (1520) are configured under a mutual angle (α) selected from the range of 30-150°; wherein a first distance (d1) between the first light escape area (1510) and the third light escape area (1530) is at least partly bridged by the second light escape area (1520); wherein the light generating system (1000) comprises a system end window (1010), wherein the system end window (1010) comprises the third light escape area (1530); the light generating system (1000) is configured such that in a first operational mode the light generating system (1000) provides first module light (1511) and second module light (1512), wherein the first module light (1511) comprises a first part of the device light (101) that propagates from the first light escape area (1510) and through the third light escape area (1530), and wherein the second module light (1521) comprises a second part of the device light (101) that propagates from the second light escape area (1520) and through the third light escape area (1530); wherein the first module light (1511) is white light, and wherein the first module light (1511) and the second module light (1521) differ in one or more of (i) color point and homogeneity of the light (1511,1522) over the respective light escape area (1510,1520).
