222) under a temperature condition of higher than 800°C and lower than 950°C to obtain an intermediate structure; using a pickling solution to pickle the intermediate structure to obtain a silicon sheet; mixing the silicon sheet and a graphene oxide sheet in a dispersion medium to obtain a mixture; mixing the mixture and a cationic polymer aqueous solution to obtain a precursor; and baking the precursor.
This light source device comprises: a first light source unit including one or more kinds of semiconductor light sources, the first light source unit emitting first ultraviolet rays; a second light source unit including one or more kinds of semiconductor light sources, the second light source unit emitting second ultraviolet rays that are different from the first ultraviolet rays in at least one of central wavelength and optical spectrum; a light tunnel that guides each of the first ultraviolet rays and the second ultraviolet rays; and a mixing optical system provided inside the light tunnel, the mixing optical system mixing the first ultraviolet rays and the second ultraviolet rays to obtain third ultraviolet rays. The inner surface of the light tunnel is a reflective surface that reflects the first ultraviolet rays, the second ultraviolet rays, and the third ultraviolet rays. The third ultraviolet rays mixed by the mixing optical system are emitted from the light tunnel.
H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
B01J 19/12 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor employing electromagnetic waves
G01N 17/00 - Investigating resistance of materials to the weather, to corrosion or to light
3.
DIASTEREOMER PREPARATION METHOD, AND SOLID-PHASE PHOTOSENSITIZER
The present invention addresses the problem of providing: a diastereomer preparation method whereby it becomes possible to produce a desired diastereomer from a diastereomer mixture with high efficiency; and a solid-phase photosensitizer which is used in the diastereomer preparation method. The solution for the problem is a diastereomer preparation method in which one diastereomer among cis-trans isomers is selectively prepared utilizing recycle HPLC, the method comprising: a step A that is a separation step for introducing a cis-trans isomer mixture into the separation column to selectively collect one diastereomer; a step B that is a photoisomerization reaction step for irradiating a solution containing the other diastereomer which is obtained after the step A or C with light in the presence of a photosensitizer in a photoisomerization reactor to induce a photoisomerization reaction; and a step C that is a step for introducing a cis-trans isomer mixture produced in the step B into a separation column to selectively collect the one diastereomer.
C07C 231/12 - Preparation of carboxylic acid amides by reactions not involving the formation of carboxamide groups
C07C 233/11 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to carbon atoms of an unsaturated carbon skeleton containing six-membered aromatic rings
C07C 235/34 - Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton containing six-membered aromatic rings having the nitrogen atoms of the carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
C07C 259/06 - Compounds containing carboxyl groups, an oxygen atom of a carboxyl group being replaced by a nitrogen atom, this nitrogen atom being further bound to an oxygen atom and not being part of nitro or nitroso groups without replacement of the other oxygen atom of the carboxyl group, e.g. hydroxamic acids having carbon atoms of hydroxamic groups bound to hydrogen atoms or to acyclic carbon atoms
B01D 15/14 - Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the introduction of the feed to the apparatus
The objective of the present invention is to provide a high pressure sodium lamp with which startup problems do not arise even if xenon pressure is increased. A high pressure sodium lamp according to the present invention includes a discharge tube inside a lamp, wherein: the discharge tube comprises a discharge vessel made of translucent alumina ceramic inside which a light emitting substance and an inert gas are sealed, a pair of electrodes attached respectively to both ends of the discharge vessel, and a corona discharge inducing structure; the corona discharge inducing structure includes an antenna which is formed on an outer surface of the discharge tube and which is electrically connected to one of the pair of electrodes, and an electrically conductive member which is disposed in an interior space of the discharge tube and which is electrically connected to the other of the pair electrodes; and problems with startup characteristics do not arise even if the gas pressure of the inert gas sealed into the discharge tube is increased.
[Problem] The purpose of the present invention is to provide a ceramic metal halide lamp that can be attached to an existing lighting device for a high-pressure sodium lamp, and that has characteristics more suitable for plant cultivation than the high pressure sodium lamp. [Solution] A ceramic metal halide lamp according to the present invention comprises at least an arc tube which is formed from translucent ceramic and has: a light emitting part in which mercury, a starting rare gas, and a luminous additive containing metal halide are sealed; and capillaries disposed at both ends thereof and in which electrode assemblies are respectively inserted. The arc tube is disposed such that the capillaries are horizontal, and is subjected to high-frequency lighting. The ratio of the arc length AL and effective inner diameter D (AL/D) of the arc tube is within a range of 0.04 AL ≤ AL/D ≤ (0.08 AL - 1.2) (where 30 ≤ AL < 50) (units: mm).
H01J 61/20 - Selection of substances for gas fillingsSpecified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
The purpose of the present invention is to provide a xenon flashlamp-based irradiation device for sterilizing a container, which prevents scattering of glass fragments in the event of breakage of quartz glass of a lamp and which has a lamp life equivalent to or better than that of a conventional lamp. This xenon flashlamp-based irradiation device for sterilizing the container pertaining to the present invention is provided with an arc tube having a section where a center region thereof is bent into a U-shape and a bottomed translucent light-transmissive jacket surrounding the U-shaped bent section, and is configured such that a refrigerant is caused to flow inside the light-transmissive jacket to cool the arc tube, and such that the U-shaped bent section can be inserted through an opening of the container to sterilize an inner surface of the container by irradiation.
The purpose of the present invention is to provide an electron beam-curable resin in which generation of smoke is suppressed during electron beam irradiation. The present invention provides an electron beam-curable resin that is cured by being subjected to electron beam irradiation, said electron beam-curable resin comprising a photopolymerizable monomer having a molecular weight of 212 or more, or being formed by mixing said photopolymerizable monomer, as a main component, with another photopolymerizable material.
C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
The purpose of the present invention is to provide an electron beam-curable ink suitable for inkjet printing. The present invention provides an electron beam-curable ink 22 that is used for inkjet printing, said electron beam-curable ink containing an electron beam-curable composition that is cured by being subjected to electron beam irradiation. The electron beam-curable composition is formed of a photopolymerizable monomer in which a surface layer 22A is polymerized by being subjected to ultraviolet irradiation under an atmosphere with an oxygen concentration that suppresses oxygen inhibition, and which is subsequently cured to a deep part 22B by being subjected to electron beam irradiation; or is formed by mixing said photopolymerizable monomer, as a main component, with another photopolymerizable material.
The purpose of the present invention is to provide a xenon flash lamp for sterilizing a container, the xenon flash lamp being suitable for sterilizing the inner surfaces of a container having a comparatively narrow opening without a reduction in sterilization ability. A xenon flash lamp for sterilizing a container according to the present invention is provided with: two light-emitting tube end parts each composed of a cylindrical glass tube having a relatively large outer diameter; and a light-emitting tube having a smaller outer diameter than the two light-emitting tube end parts, wherein a portion of the light-emitting tube is at least partially bent and can thus be inserted from an opening of the container.
The purpose of the present invention is to provide a xenon flash lamp that has a U-shaped insertion part to be inserted into a container and exhibits a lamp life equivalent to that of a conventional straight tube-type lamp. A xenon flash lamp for sterilizing a container according to the present invention is provided with a light-emitting tube composed of a cylindrical glass tube, wherein a portion of the light-emitting tube is partially bent in a U-shape that can be inserted into an opening of the container, the inner thickness t1 [mm] of the bent portion of the U-shape is in the range of 0.8≤t1≤2.5, and the thickness t2 [mm] of straight portions Us of the U-shape is in the range of 0.4≤t2≤2.0.
The purpose of the present invention is to prevent damaging of a sealing material. A light-emitting device 1 has: a LED mounting substrate 22 on which LEDs 28 are mounted; and a case 2 which is provided with a housing recess 20 for housing the LED mounting substrate 22, wherein the LED mounting substrate 22 is disposed on the bottom surface 24 of the housing recess 20. This light-emitting device 1 is provided with: a translucent sealing material 50 that fills the housing recess 20 and seals the LED mounting substrate 22; and a translucent protective cover 4 that is provided to the surface 50A of the sealing member 50. The protective cover 4 is disposed such that a gap δ is formed between the protective cover 4 and the housing recess 20. The gap δ is filled with a flexible adhesive 12, and the protective cover 4 and the housing recess 20 are bonded together by the adhesive 12.
An electron-beam-curing resin or a photocurable resin not containing a photopolymerization initiator is cured by photoirradiation under an atmosphere equal to or lower than predetermined oxygen concentration for not causing oxygen inhibition to polymerization of photocurable resin or electron beam-curable resin, an ultraviolet ray in wavelength region corresponding to a light absorption characteristic of the photocurable resin or the electron beam-curable resin is irradiated on the photocurable resin or the electron beam-curable resin to polymerize the photocurable resin or the electron beam-curable resin. After an ultraviolet ray is irradiated on the photocurable resin or the electron beam-curable resin to polymerize at least a surface layer, an electron beam is irradiated on the photocurable resin or the electron beam-curable resin to polymerize a deep part, and the entire photocurable resin or the entire electron beam-curable resin is cured.
B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
C08F 2/54 - Polymerisation initiated by wave energy or particle radiation by X-rays or electrons
B01J 19/08 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor
B01J 19/12 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor employing electromagnetic waves
17.
SUBSTRATE FOR TEST USE, AND METHOD FOR PRODUCING SUBSTRATE FOR TEST USE
NATIONAL INSTITUTES FOR QUANTUM AND RADIOLOGICAL SCIENCE AND TECHNOLOGY (Japan)
Inventor
Kinoshita Shinobu
Ide Takashi
Oyama Tomoko
Taguchi Mitsumasa
Barba Bin Jeremiah Duenas
Abstract
Provided are: a substrate for test use, which can be used suitably in a test such as a culture test; and a method for producing the substrate for test use. A substrate 1 for test use, provided with a base member 5 made from polydimethylsiloxane and a solution-retaining part that is formed on the surface of the base member 5 and can retain water or an aqueous solution, wherein the solution-retaining part has a depressed shape having a hydrophilic surface layer and the largest thickness of the surface layer is 1 μm or more.
B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers
B01J 19/12 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor employing electromagnetic waves
C12M 3/00 - Tissue, human, animal or plant cell, or virus culture apparatus
The present invention enhances peak illuminance and enables space saving. An irradiation unit (30) that applies light to a predetermined irradiation position (T) is provided with: a pair of mounting substrates (52) which has light emitting parts (60) including ultraviolet LEDs, respectively and which is disposed such that the light emitting parts (60) oppose each other; and a pair of first reflection surfaces (55) and a pair of second reflection surfaces (57) which are disposed at such opposing positions that the paired first reflection surfaces (55) oppose the light emitting parts (60) of the mounting substrates (52), respectively, and the paired second reflection surfaces (57) oppose the light emitting parts (60) of the mounting substrates (52), respectively, and which perform light distribution control of light of the light emitting parts (60) positioned at the opposing positions. The second reflection surfaces (57) are located closer to the predetermined irradiation position (T) than the first reflection surfaces (55) are, and are each spaced from the light emitting part (60) at its opposing position, with respect to the first reflection surfaces (55), so as to be disposed on the other light emitting part (60) side. Each second reflection surface (57) is disposed with a space (Q) provided between the second reflection surface (57) and a corresponding one of the first reflection surfaces (55). Light, which enters each second reflection surface (57) from the light emitting part (60) at its opposing position, enters the second reflection surface (57) through the space (Q).
F21V 7/08 - Optical design with elliptical curvature
F21S 2/00 - Systems of lighting devices, not provided for in main groups or , e.g. of modular construction
F21V 29/503 - Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
F21V 29/56 - Cooling arrangements using liquid coolants
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
F21Y 103/10 - Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
The present technology provides a high-pressure sodium lamp lighting device that reduces occurrence of the acoustic resonance phenomenon. A high-pressure sodium lamp lighting device of one aspect of the present invention comprises a high-pressure sodium lamp of arc length AL within the scope of 142.8 mm≤AL≤167 mm. The lighting device also includes an electronic ballast configured to supply a high frequency AC voltage to the high-pressure sodium lamp. A lighting frequency of the electronic ballast is a frequency that avoids a first and a second acoustic resonance occurrence bands f1 kHz and f2 kHz determined based on equations from an arc tube inner diameter D mm of the high-pressure sodium lamp. The equation for f1 is a range of f1min to f1max=(−7.4D+130) to (−8.3D+156). The equation for f2 is a range of f2 min to f2max=(−11.5D+200) to (−10.0D+197).
H05B 41/298 - Arrangements for protecting lamps or circuits against abnormal operating conditions
H05B 41/32 - Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation
H01J 61/82 - Lamps with high-pressure unconstricted discharge
H01J 61/073 - Main electrodes for high-pressure discharge lamps
H01J 61/22 - Selection of substances for gas fillingsSpecified operating pressure or temperature having a metallic vapour as the principal constituent vapour of an alkali metal
H05B 41/24 - Circuit arrangements in which the lamp is fed by high-frequency AC
The present invention provides a compact and light-weight electron-beam irradiation device. The present invention includes an electron-beam generating part 10 that generates an electron beam 80. The electron-beam generating part 10 includes a filament 13 that generates thermions, a terminal 11 that has a diffusion plate 15 through which the thermions generated in the filament 13 pass, and a vacuum chamber 20 that accelerates the thermions in a vacuum space. The vacuum chamber 20 is provided with an electron-beam retrieval window 16 through which the electron beam generated in the electron-beam generating part 10 is emitted. A connector 40, into which a high-voltage cable 30 is inserted, is directly connected to the terminal 11.
An object of the present invention is to provide a high-pressure sodium lamp lighting device that reduces occurrence of the acoustic resonance phenomenon. A high-pressure sodium lamp lighting device of one aspect of the present invention comprises: a high-pressure sodium lamp of arc length AL within the scope of 142.8 mm.ltoreq. AL.ltoreq. 167mm; and electronic ballast configured to supply a high frequency AC voltage to the high-pressure sodium lamp, a lighting frequency of the electronic ballast being a frequency that avoids a first and a second acoustic resonance occurrence bands fl kHz and f2 kHz determined based on (Equation 1) and (Equation 2) from an arc tube inner diameter D mm of the high-pressure sodium lamp. First acoustic resonance occurrence band f1: f1min. to f1max.=(-7.4D+130) to (-8.3D+156) (Eq.1) Where D: arc tube inner diameter mm Second acoustic resonance occurrence band f2: f2min. to f2max.=(-11.5D+200) to (-10.D+197) (Eq. 2) Where D: arc tube inner diameter mm
H01J 61/22 - Selection of substances for gas fillingsSpecified operating pressure or temperature having a metallic vapour as the principal constituent vapour of an alkali metal
H05B 41/24 - Circuit arrangements in which the lamp is fed by high-frequency AC
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Optical machines and apparatus; measuring or testing
machines and instruments; power distribution or control
machines and apparatus; lighting ballasts; light dimmers for
lighting apparatus; telecommunication machines and
apparatus; electronic machines, apparatus and their parts;
radiological apparatus for industrial purposes. Electric lamps and other lighting apparatus; halogen
heaters; sterilizers for sterilizing by irradiating
ultraviolet rays the surface of goods conveyed by a
conveying device; air sterilizers for industrial purposes;
liquid sterilizing apparatus for industrial purposes;
sterilizing and purification apparatus using ultraviolet for
preventing water pollution; water purifying apparatus; air
sterilizing apparatus for household purposes; light-emitting
diodes [LED] lamps; light-emitting diodes [LED] lighting
apparatus; apparatus for lighting, heating, steam
generating, cooking, refrigerating, drying, ventilating,
water supply and sanitary purposes.
Disclosed is a lighting device wherein destruction and breakage of a semiconductor light emitting element due to a test signal applied in a dielectric strength test and a withstand voltage test of the lighting device are eliminated. A road lighting fixture 1 is provided with: an LED device 32 having an LED element 40, and a second Zener diode 41 that electrically protects the LED element 40; and a circuit board 34 that is provided with the LED device 32. The road lighting fixture is configured such that the circuit board 34 is provided with a first Zener diode 36, which is connected in parallel to the LED device 32, and which protects the LED device 32 from a high voltage test signal.
In the present invention, an electron-beam-curing resin or a photocurable resin not containing a photopolymerization initiator is cured by photoirradiation. In the present invention, ultraviolet rays in a wavelength region corresponding to the light absorption characteristics of a photocurable resin or an electron-beam-curable resin are radiated in an atmosphere having equal to or less than a predetermined oxygen concentration whereby oxygen inhibition of polymerization of a photocurable resin or an electron-beam-curable resin does not occur, polymerization is performed, the ultraviolet rays are radiated to the photocurable resin or electron-beam-curable resin and at least the outer layer thereof is polymerized, after which an electron beam is radiated to polymerize a deep part thereof, and the entire photocurable resin or electron-beam-curable resin is cured.
A stranded outer lead wire assembly for a quartz pinch sealed lamp. The stranded outer lead wire assembly is a butt welded connection of a refractory metal outer pinch lead (e.g., molybdenum solid wire) and a stranded soft metal lead wire (e.g., nickel wire strands twisted together). The assembly is prefabricated and then welded to sealing foil to make a four part foliated lead wire assembly for pinch sealing in the quartz outer jacket. The foliated lead wire assembly and a quartz envelope lamp utilizing the stranded outer lead wire assembly are also claimed. The sealing machine is adapted to protect the stranded outer lead assembly with a water cooled sleeve. In an embodiment, the outer end of the stranded lead is fused to prevent fraying.
An LED lamp is enhanced by adding an integral control receptacle, wherein a frame structure of the lamp having a horizontal top surface is adapted by attaching a photocontrol receptacle on the top surface and wiring it for powering some pins of the receptacle and for connecting some pins for controlling functions of the LED lamp. The control is provided by plugging a suitable controller into the receptacle. Advantageously, a metal plate is attached between the receptacle and the lamp frame, thereby enhancing performance in ways that include heat sinking, blocking uplight, reflecting added light down and outward. Additional lighting effects are derived from optionally shaping the plate, providing different surfaces on it, and/or attaching more LEDs on it.
F21S 8/08 - Lighting devices intended for fixed installation with a standard
H05B 33/08 - Circuit arrangements for operating electroluminescent light sources
F21V 21/002 - Supporting, suspending, or attaching arrangements for lighting devicesHand grips making direct electrical contact, e.g. by piercing
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
The objective of the invention is to provide a light source unit capable of changing the light distribution pattern thereof, and to provide a lighting instrument. The light source unit 70 is constituted by comprising: a light-emitting surface 30A; a reflection mirror 32 surrounding the light-emitting surface 30A, whereby the emitted light from the light-emitting surface 30A is distributed at a wide angle; and a medium angle light distribution lens 55 selectively provided on the reflection mirror 32, whereby the outgoing light exiting from an exit aperture 33 of the reflection mirror 32 is distributed at a medium angle.
Provided are a bushing and a light fixture with which it is possible to insert pipes having different outside diameters without the use of a sharp tool. A bushing 40 has an insertion hole 41 through which pipes 5 having different outside diameters can be inserted, wherein a plurality of annular thin parts 44 are provided to positions corresponding to the outside diameters of the pipes 5, and a plurality of insertion holes 41 having different diameters can be formed by tearing off the thin parts 44.
An LED lamp is equipped with a plurality of light source units each having a mounting board on which a light emitting element is mounted, on a front surface of a substrate, the plurality of light source units are disposed around an axis C of the LED lamp with back surfaces of the respective substrates facing inside, and gaps G1 left from one another, and heat radiation fins that are disposed to be inclined with respect to an axial direction of the axis C are provided on the back surface of the substrate.
F21V 15/015 - Devices for covering joints between adjacent lighting devicesEnd coverings
F21V 25/00 - Safety devices structurally associated with lighting devices
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
F21S 2/00 - Systems of lighting devices, not provided for in main groups or , e.g. of modular construction
F21V 19/04 - Fastening of light sources or lamp holders with provision for changing light source, e.g. turret
F21V 29/74 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
F21V 29/75 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
F21K 9/23 - 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
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
This invention avoids a socket for a light bulb type LED lamp from being damaged in an environment in which vibrations are applied over a long period of time. The light bulb type LED lamp comprises a neck portion having a base, and a top portion having an LED base board whereon an LED element is mounted and a heat sink is fitted onto the LED base board. The neck portion is provided with a tubular anti-vibration member covering the circumference of the base, such that, when the base is fitted into the socket, the anti-vibration member becomes sandwiched between the socket and the base. The neck portion has a coupling member connected to the base. The coupling member includes a cone portion on the base side and a cylindrical portion on the top side. The anti-vibration member is fitted in such a manner as to cover the cone portion and a portion of the base.
A bulb-shaped LED lamp, wherein the temperature of the motor for a cooling fan is reduced and a reduction in the performance of the cooling fan is avoided at the same time as the light-emitting efficiency of the LED is improved. The LED lamp has: a bayonet cap; an LED substrate having a polygonal cross-section and being formed in a cylindrical shape; an LED element mounted on the outer side of the LED substrate; a heat sink mounted on the inner side of the LED substrate; a through hole formed on the inner side of the heat sink; a cooling fan disposed between the bayonet cap and the heat sink; and a translucent cover. The LED lamp may be configured such that: a spacer is provided between the cooling fan and the heat sink; the cooling fan has a motor and a ring-shaped through hole around the motor; the spacer has a center member, a ring-shaped member around the center member, and a through hole between the center member and the ring-shaped member; and the through hole of the spacer is disposed to match the through hole of the cooling fan.
F21V 19/00 - Fastening of light sources or lamp holders
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
F21V 29/503 - Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
F21V 29/67 - Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
F21V 29/74 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
F21V 29/83 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
An electric-bulb-type LED lamp, wherein a step for assembling a heat sink and an LED substrate is simplified. An electric-bulb-type LED lamp having a bayonet cap, an LED substrate in which an LED element is mounted, and a heat sink in which the LED substrate is mounted, wherein the heat sink and the end of the LED substrate may be secured by being clamped with a clip. In the LED lamp, the heat sink may be formed by folding one plate-shaped member.
F21K 9/00 - Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
F21S 2/00 - Systems of lighting devices, not provided for in main groups or , e.g. of modular construction
F21V 17/00 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
F21V 19/00 - Fastening of light sources or lamp holders
F21V 29/503 - Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
F21V 29/67 - Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
F21V 29/74 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
F21V 29/83 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
F21V 31/03 - Gas-tight or water-tight arrangements with provision for venting
The purpose of the present invention is to suppress changes in the white balance of a photographic image, even if the quantity of illumination light changes. Provided is a light source device 2, comprising a white light source unit 24A which radiates white light K1A, and an infrared light source unit 25 which radiates excitation light K2 of a wavelength band ΔE2 which overlaps partially with a wavelength band ΔE1 of the white light K1A within the visible light wavelength band, said light source device 2 configured to composite the white light K1A and the excitation light K2 in the same optical axis, project illumination light K for photography, and is capable of switching the excitation light K2 on and off. The light source device 2 further comprises: an auxiliary light source unit 24B which radiates light of differing wavelengths within the visible light wavelength band; and a light source control unit 14 which, when the excitation light K2 is switched on and off, changes the outputted light quantity ratio of the white light K1A of the white light source unit 24A and auxiliary light K1B of the auxiliary light source unit 24B such that the color temperature of the illumination light K prior to the switch is preserved.
A61B 1/06 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor with illuminating arrangements
A61B 1/04 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor combined with photographic or television appliances
G02B 23/24 - Instruments for viewing the inside of hollow bodies, e.g. fibrescopes
G02B 23/26 - Instruments for viewing the inside of hollow bodies, e.g. fibrescopes using light guides
The purpose of the present invention is to improve the focusing property of a light guide component. A light-focusing light guide device (8) comprises: a first reflecting surface (50) formed into a curved shape extending from an LED package (24) toward an incidence end surface (35) of a light guide (2) along an optical axis (K) to reflect the light from the LED package (24) and thereby focus the reflected light onto the incidence end surface (35); and an optical control element (60) housed at the end part of the first reflecting surface (50) near the incidence end surface (35). The optical control element (60) refracts the light directed and incident onto the reflecting surface at the end part near the incidence end surface (35) and emits the refracted light at an emission angle less than and equal to a prescribed angle.
G02B 6/00 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings
A61B 1/06 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor with illuminating arrangements
F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
G02B 6/42 - Coupling light guides with opto-electronic elements
G02B 23/26 - Instruments for viewing the inside of hollow bodies, e.g. fibrescopes using light guides
An imaging system includes: a first lighting device for irradiating an imaging target object with visible light; a second lighting device for irradiating the imaging target object with near-infrared light; and an image sensor for photodetecting visible light caused by the visible light and coming from the imaging target object and fluorescence caused by the near-infrared light and coming from the imaging target object during a predetermined shutter open period every frame of a predetermined period. The image sensor outputs photodetection signals corresponding to photodetection amounts of the visible light and the fluorescence. The imaging system also includes a controller that generates a composite image of a visible image and a fluorescence image based on the photodetection signals, and has a lighting controller that turns on the second lighting device with optical power corresponding to the shutter open period in synchronism with the shutter open period.
G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
Provided is a lamp which uses a light-emitting element as the light source, can be used as an alternative to high output lamps such as HID lamps, and has excellent handling properties. The lamp comprises the light source unit (10) provided with the light-emitting element and a light source holding unit (30) having a metal base (40). Moving the light source unit (10) in the axial direction of the metal base (40) allows the light source unit (10) and the light source holding unit (30) to be switched between a coupled state and a state of being able to rotate relative to one another.
Provided is a lamp which uses a light-emitting element as the light source, can be used as an alternative to high output lamps such as HID lamps, and is configured so that the light-emitting element can be cooled efficiently. This LED lamp (1), which is provided with a metal base (40) to be threadably inserted into a socket (105) of a fixture main body (100), comprises a light source unit (10) provided with LEDs (11) and a light source holding unit (30) having a metal base (40). The light source unit (10) and the light source holding unit (30) can be switched between a coupled state and a state of being able to rotate relative to each other. The light source unit (10) has two flat-plate-shaped platforms (16) extending along the central axis (O) of the metal base (40). The two platforms (16) are disposed so as to adopt a V-shape. The LEDs (11) are disposed on the front surface of each of the platforms (16). Cooling fins (17) are disposed on the back surface of each of the platforms (16). The central axis (O) of the metal base (40) is located on the inner side of the two platforms (16) that are disposed in the V-shape. Thus, the platforms (16) and the cooling fins (17) are disposed in such a manner that there is no interference with the fixture main body (100) when the metal base (40) is threadably inserted into the socket (105).
An object is to provide an LED module that eliminates the need for providing electrodes between each device and allows LEDs to be arrayed with high density. An LED module includes a substrate, a first frame member, a second frame member disposed outside the first frame member, a plurality of LEDs for producing white light disposed within the first frame member, a phosphor resin disposed within the first frame member, a plurality of LEDs for producing colored light disposed between the first frame member and the second frame member, and electrodes for applying a voltage to the plurality of LEDs for producing the white light, wherein a metal wire to connect the plurality of LEDs for producing the colored light to one another is disposed so as to straddle a part of each of the electrodes.
H01L 21/00 - Processes or apparatus specially adapted for the manufacture or treatment of semiconductor or solid-state devices, or of parts thereof
H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Metalworking machines and tools; cleaning machines for
metalworking components and electronic components; chemical
processing machines and apparatus; printing or bookbinding
machines and apparatus; agricultural machines and implements
other than hand-operated; painting machines and apparatus;
semiconductor manufacturing machines and systems; apparatus
for processing and manufacturing electronic circuit
substrates; pneumatic or hydraulic machines and instruments. Ozonisers; electrolysers; alarm devices for disaster
prevention or crime prevention; monitoring devices for
disaster prevention or crime prevention; emergency call
units; electric alarm bells; electric alarm buzzers; alarm
flashing lights; alarm revolving lights; luminous or
electrically lighted road signs; luminous or electrically
lighted evacuation guide signs; laboratory apparatus and
instruments; laboratory experimental machines and apparatus;
photographic machines and apparatus; cinematographic
machines and apparatus; optical machines and apparatus;
measuring or testing machines and instruments; weather
resistance testing devices; environment testing devices;
power distribution or control machines and apparatus; rotary
converters; phase modifiers; lighting ballasts; light
dimmers for lighting apparatus; electric or magnetic meters
and testers; electric wires and cables; electricity conduits
and accessories thereof for electric wires and cables;
telecommunication machines and apparatus; electronic display
devices; electronic notice boards; light source apparatus
for liquid crystal projectors; electric monitoring
apparatus; image signal processing apparatus for remote
monitoring systems; electronic machines and apparatus and
parts thereof; ultrasonic or photoelectric vehicle
detectors; radiation generators for industrial purposes. Electric lamps and other lighting apparatus; drying
apparatus for chemical processing; halogen heaters for
drying apparatus; recuperators for chemical processing;
steamers for chemical processing; evaporators for chemical
processing; distillers for chemical processing; heat
exchangers for chemical processing; apparatus for the
production of ozone water for industrial purposes;
sterilizers for sterilizing by irradiating ultraviolet rays
the surface of goods conveyed by a conveying device; air
sterilizers for industrial purposes; liquid sterilizing
apparatus for industrial purposes; industrial furnaces;
air-conditioning apparatus; deodorizing apparatus for
industrial purposes; wastewater purifier tanks for
industrial purposes; septic tanks for human waste for
industrial purposes; wastewater treatment apparatus using an
ultraviolet disinfection equipment; wastewater treatment
apparatus using an apparatus for the production of ozone;
sterilizing and purification apparatus using ultraviolet for
preventing water pollution; water purifying apparatus;
household electrothermic appliances; air sterilizing
apparatus for household purposes; ion generators.
The present invention addresses the problem of inhibiting a reduction in light-condensing properties at light-condensing points, even in cases when light-emission points of a light source are large. This light-condensing light guide is provided with a first reflective surface (50) which extends from an LED package having a plurality of light-emission points (P) provided to a light-emission surface (29) thereof, to at least a place near a light-reception point, and which condenses light from the LED package, and guides said light to the light-reception point. The first reflective surface (50) has a cylindrical shape having, as the central axis (L1) thereof, a line linking the centre (O) of the light-emission surface (29) and the light-reception point. Furthermore, the first reflective surface (50) is formed by overlapping each of a plurality of elliptical reflection planes (70) defined for each of the light-emission points (P) using the light-emission points (P) as first focal points (f1) and the light-reception point as a second focal point (f2).
A lamp achieves high output power like an HID lamp by using a light emitting element(s) as a light source. A mount board having LED mounted thereon is provided on the surface of a base member, and there are provided plural flat plate type light source units arranged around an axial line while the back surfaces thereof faces inwards, and a support member provided on the axial line. The plural light source units are supported on the support member, and a space through which air flows is provided at the back surface side of each base member.
F21V 29/00 - Protecting lighting devices from thermal damageCooling or heating arrangements specially adapted for lighting devices or systems
F21K 99/00 - Subject matter not provided for in other groups of this subclass
F21V 19/00 - Fastening of light sources or lamp holders
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 23/00 - Arrangement of electric circuit elements in or on lighting devices
F21Y 101/02 - Miniature, e.g. light emitting diodes (LED)
Provided is a LED lamp that can provide high electric power and a high output due to an improvement in a cooling effect achieved using a cooling fan while simultaneously preventing a reduction in the performance of the cooling fan. The LED lamp has a base, a tubular heat sink having a through-hole that extends along a center axis, a substrate arranged on the side surface of the heat sink, an LED element adhering to the substrate, a cooling fan arranged between the base and the heat sink, a housing body covering the cooling fan, and a transparent cover covering the substrate and the LED element. The center axis of the cooling fan and the center axis of the heat sink are aligned with the center axis of the lamp. The heat sink has concentric inside and outside tubular parts and is configured so that a center through-hole is formed inside the inside tubular part and a pipe-like through-hole is formed between the inside tubular part and the outside tubular part.
Provided is a lamp that makes it possible to efficiently radiate the heat of said lamp using heat-radiating fins and that does not cause warping or bending of a light source unit at the time of molding. A plurality of light source units are arranged around the axis of the lamp with gaps therebetween so that the rear surface of the substrate of the light source units faces inward. A connecting section (100) is formed on the rear surface of the substrate (22), has provided thereto a plurality of heat-radiating fins (29) that are arranged with respect to the axis (C) with gaps therebetween, and connects the plurality of heat-radiating fins (29).
Provided is a bulb-type LED lamp capable of high power and high output by improving the cooling effect of a cooling fan at the same time as improving the light emission efficiency of the LED. This LED lamp is provided with a base, a tubular heat sink having a through-hole extending along the central axis, a substrate arranged on the lateral surface of the heat sink, an LED element mounted on said substrate, a cooling fan arranged between the base and the heat sink, a housing covering the cooling fan, and a translucent cover which covers the substrate and the LED element, wherein the central axis of the cooling fan and the central axis of the heat sink are aligned with the central axis of the lamp, and the housing comprises a fan housing unit for housing the cooling fan and a connection unit connected to the fan housing unit. An air intake hole is formed in the fan housing unit, and air from the outside is guided through the air intake hole to the cooling fan.
Provided is an illumination apparatus using an LED lamp capable of high power and high output, as a result of preventing the reduction of cooling fan performance and, simultaneously, increasing the cooling effect of the cooling fan. The LED illumination apparatus has: an LED lamp having an LED, a cooling fan, and a cap; a reflective mirror forming a reflective space; and a case comprising a socket having the LED lamp cap attached thereto and a socket housing section housing said socket. The reflective mirror has a hole connecting the reflective space and the socket housing section. The LED lamp is arranged penetrating the reflective mirror hole, such that the LED and the cooling fan area arranged inside the reflective space and the cap is arranged in the socket housing section. Cooling air generated by the cooling fan in the LED lamp flows towards the cap and air discharged from the LED lamp is guided to the socket housing section.
The purpose of the present invention is to provide an LED lamp comprising a novel cooling/radiation means. This LED lamp comprises: a plurality of LED elements; a plurality of light-source supporting bodies having each of the plurality of LED elements mounted thereon and extending along the lamp axial line; and a hermetically sealed glass container encasing the light-source supporting bodies. The plurality of light-source supporting bodies are arranged so as to form an n-angle shape (n = a natural number such as 3, 4, ...), as viewed from a cross-section perpendicular to the lamp axial line, such that a gas flow path is formed that flows along the lamp axial line between both end sections thereof. The light-source supporting bodies have a ventilation structure that penetrates between an LED element mounting surface and a rear surface, such that an inflow and outflow of gas in the gas flow path is formed.
Provided are a light-emitting element module in which glare can be reduced, and an illumination device. A light-emitting element module (10) is configured so that a plurality of light-emitting elements (11) are disposed along edges (13A) of a substrate (13) and light-emitting elements (11) are disposed on the inside of said light-emitting elements (11). The light outputted by the light-emitting elements (11) on the inside is smaller than the light outputted by the light-emitting elements (11) disposed on the outside along the edges (13A) of the substrate (13). An illumination device is provided with the light-emitting element module (10).
The purpose of the present invention is to provide a reduced-height illumination device. The illumination device (1) is provided with: a device body (2) in which a box-shaped power supply housing unit (20) for housing a power supply unit (7) and a mounting surface (5) for mounting a light-emitting element are integrally formed using a heat-conducting material; and a glove (4) covering the mounting surface (5). The mounting surface (5) is provided so as to enclose the outer periphery (20B)-(20C) of the power supply housing unit (20).
An objective is to prevent a niobium lead wire protruding from a narrow tube portion of a discharge container from being readily broken in a lamp production process, or the like, such that the lamp production process becomes more efficient. The ceramic metal halide lamp has a translucent external tube, a discharge container having a light-emitting portion (130C) and a narrow tube portion (130A), and an electrode system (120a) mounted in the narrow tube portion (130A) of the discharge container, the electrode system (120a) having a tungsten electrode (123), a current-supplying conductor (122), and a niobium lead wire (121). A connecting portion between the current-supplying conductor (122) and the lead wire (121) is disposed inside the narrow tube portion (130A). A portion of the lead wire (121) is disposed inside the narrow tube portion (130A) and the remaining portion of the lead wire (121) protrudes from a front end of the narrow tube portion (130A). A gas-absorbing member (131) is fitted in the periphery of the protruding portion, close to the narrow tube portion (130A), for absorbing a gas that is generated when a sealing portion is formed on the narrow tube portion (130A).
This invention provides a light source, and a manufacturing method therefor, that is highly suitable for illuminating fresh food, said light source being capable of making the colors of meats, vegetables, and the like appear more vibrant than a high-color-saturation, high-color-rendering-index high-pressure sodium lamp does. Said light source is provided with a light-emitting unit that produces visible light rays, at least. If the wavelength region from 380 to 780 nm is divided into a blue/violet first wavelength region from 380 to 490 nm, a green second wavelength region from 490 to 570 nm, a yellow third wavelength region from 570 to 590 nm, and a red/orange fourth wavelength region from 590 to 780 nm, the light-emitting unit has an emission spectrum, with the ratio between the energy intensities of the light from the light-emitting unit integrated over the respective wavelength regions expressed as y1:y2:y3:y4 (with y1+y2+y3+y4 = 100), that satisfies the relations 7 ≤ y1 ≤ 11, 15 ≤ y2 ≤ 21, and 0 ≤ y3 < 3, with y4 constituting the remainder.
H01J 61/20 - Selection of substances for gas fillingsSpecified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
[Problem] The objective of the present invention is to provide a hermetically sealed LED lamp having a highly cooling and heat-dissipating function and wherein no discoloration arises in the LED element. [Solution] This hermetically sealed LED lamp is a hermetically sealed LED lamp having an outer bulb covering an LED light source and has a mixed gas of helium and oxygen comprising at least oxygen mixed into helium sealed inside the outer bulb. Alternatively to the mixed gas, a helium gas sealed inside the outer bulb and a solid oxygen dispenser may be provided, so that, when lighting the lamp, the mixed gas of helium and oxygen is generated inside the outer bulb with the oxygen supplied from the oxygen dispenser.
The present invention makes it possible to maintain heat radiation properties and prevent electric shock in a lamp. A lamp is provided with a plurality of light source units (13) that comprise a mounting board (21) on the surface of a metal substrate having a substantially flat plate shape, said mounting board (21) having an LED (20) mounted thereto; and a support body (12) that comprises an insulating material and that supports the plurality of light source units (13). A heat-radiating fin (29) is provided to the rear surface of the substrate. The plurality of light source units (13) are attached so that one end section (13a) thereof surrounds and covers the support body (12) and arranged around the axis (C) of an LED lamp (1) so that the rear surface of each substrate faces inward. The lamp is additionally provided with a joining member that comprises an insulating material and that blocks an opening that is created by the other end sections (13b) of the plurality of light source units (13).
The present invention makes it possible to efficiently radiate the heat of a lamp using heat-radiating fins. An LED lamp (1) is provided with a plurality of light source units (13) that comprise a mounting board on the surface of a substrate (22), said mounting board having a light-emitting element mounted thereto. The rear surface (22d) of each of the substrates (22) of the plurality of light source units (13) is oriented inward, said light source units (13) are arranged around the axis (C) of the LED lamp (1) with a gap (G1) therebetween, and a heat-radiating fin (29) that is arranged so as to be inclined with respect to the axial direction of the axis (C) is provided to the rear surface (22d) of the substrate (22).
In order to prevent a halogen lamp coiled filament (3) from sagging due to the weight thereof, supporting rods (L1, L2) support the middle section thereof, while simultaneously, the supporting rods (L1, L2) are prevented from weakening due to the effect of intense heat radiating from the filament (3) and deforming by sagging under load from the filament (3). Disposed inside a sealed glass body (2) which is horizontal when the lamp is fitted are a coiled filament (3) and power-supply rods (4A, 4B) electrically connecting and supporting the front end portion and the back end portion of the filament (3), while, on the underside of the filament (3), a pair of long and short supporting rods (L1, L2) are provided in parallel for supporting from left and right oblique directions under the filament (3) two tandem positions (P1, P2) in the middle section thereof.
A lamp is configured so that the engagement of the lamp with a socket does not loosen. An LED lamp (200) comprises a base (3) provided to a cylindrical section (230), and the base (3) is engaged with a socket (290). The LED lamp (200) comprises a ring-shaped loosening prevention member (260) provided to the outer periphery of the cylindrical section (230). The loosening prevention member (260) has a (socket-side) contact surface (297) coming into contact with the front end peripheral edge section (292A) of the connection opening (292) of the socket (290). The contact surface (297) is provided with a joining wall section (303) for preventing the rotation of the LED lamp (200).
A glare measuring system is configured to have an imaging camera which is supported to be rotatable within a horizontal plane, and a processing device which calculates equivalent veiling luminance on the basis of a pickup image of the imaging camera and calculates the value of a glare rating GR on the basis of the equivalent veiling luminance. The imaging camera has a super-wide-angle lens mounted thereon, and picks up an image in a position which is rotated within the horizontal plane by every angle corresponding to the angle of view α of the super-wide-angle. The processing device combines pickup images to generate a composite image in which a glare measurement direction is set to the center of the composite image, calculates equivalent veiling luminance on the basis of the composite image, and calculates the value of the glare rating in the glare measurement direction.
The purpose of the present invention is to provide a lighting apparatus, wherein light distribution can be easily changed, and apparatus efficiency does not deteriorate even in the cases of using the lighting apparatus by removing the leading end side from a reflector. An LED lighting apparatus (1) of the present invention is characterized in that: an LED (9), i.e., a light source, and a reflector (10) having a reflecting surface (12) are housed in an apparatus main body (2), said reflecting surface having a shape of a rotating curved surface; the reflector (10) can be separated into the base end side and the leading end side of the reflecting surface (12); and a leading end of the base end-side part (40Pa) is protruding from the apparatus main body (2).
Provided is an illumination device capable of maintaining good heat transfer from a light emitting element to a case and of obtaining high withstand voltage performance. A sports illumination device (1) having a light source comprising a COB-type LED (30), comprising a base plate (32) comprising a high heat-transference material to which the heat from the COB-type LED (30) is transferred, and wherein: the COB-type LED (30) is attached to a case (10); an engagement hole (54) that engages in a state in which part of the base plate (32) is exposed outside the case (10) is provided in the case (10); and insulating packing (38) is provided at the site of contact between the base plate (32) and the engagement hole (54) in the case (10).
A lamp achieves high output power like an HID lamp by using a light emitting element(s) as a light source. A mount board having LED mounted thereon is provided on the surface of a base member, and there are provided plural flat plate type light source units arranged around an axial line while the back surfaces thereof faces inwards, and a support member provided on the axial line. The plural light source units are supported on the support member, and a space through which air flows is provided at the back surface side of each base member.
F21V 29/00 - Protecting lighting devices from thermal damageCooling or heating arrangements specially adapted for lighting devices or systems
F21K 99/00 - Subject matter not provided for in other groups of this subclass
F21V 31/00 - Gas-tight or water-tight arrangements
F21V 29/74 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
F21V 29/83 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
F21Y 101/02 - Miniature, e.g. light emitting diodes (LED)
F21Y 103/00 - Elongate light sources, e.g. fluorescent tubes
F21Y 111/00 - Light sources of a form not covered by groups
In the present invention, lamp life is extended by preventing thermal degradation and thermal deformation of support rods by reducing the effects of heat convection arising directly above a filament, and thereby suppressing filament deformation. Within a glass sealed body (2) that is transversely oriented during lamp attachment, a coil shaped filament (3) is disposed extending in the axial direction thereof. First and second support rods (L1, L2), which suspend and support the filament (3) from above at intermediate sites thereon with wires (W1, W2), the filament (3) being in a horizontal attitude during lamp attachment, are disposed along the longitudinal direction of the filament (3) and also are disposed in positions shifted to the left and right, respectively, of the position directly above the filament (3), avoiding the position directly above the same during lamp attachment.
Provided is a light emitting tube supporting structure in a ceramic metal halide lamp, said supporting structure having a simple structure, and being capable of eliminating breakage of a capillary section of a light emitting tube. This ceramic metal halide lamp has a translucent outer tube, a light emitting tube, electrode leads, a power supplying lead line, and a frame. A supporting structure for supporting the light emitting tube is provided to one of the two electrode leads, and the supporting structure has a metal plate having one end thereof connected to the electrode lead, and the other end thereof connected to the power supplying lead line or to the frame. The longitudinal direction of the metal plate is in the direction orthogonal to an axis line of the capillary section, and the width direction of the metal plate is disposed along the axis line of the capillary section.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Optical condensers; electric conductors; fuse wire; electric
switches; plugs, sockets and other contacts [electric
connections]; distribution consoles [electricity]; automatic
time switches; electric light dimmers [regulators]; lighting
ballasts; electric apparatus for commutation. Electric light bulbs; electric lamps; lamps; electric
discharge tubes for lighting; lighting apparatus and
installations; flares; luminous tubes for lighting;
automobile lights; germicidal lamps for purifying air;
light-emitting diode lighting apparatus.
The purpose of the present invention is to provide a high-watt ceramic metal halide lamp that maintains a high luminous efficiency and with which blackening does not occur in the luminous tube. This high-watt ceramic metal halide lamp is provided with a luminous tube in which are included at least mercury and a metal halide. The luminous tube comprises a thick tube part (6a) and a pair of thin tube parts (6b) that are formed at either end of the thick tube part (6a), a current introducing element (30) passes through the inner part of each of the thin tube parts (6b), the external diameter (L14) of the current introducing element (30) relative to the internal diameter (L6) of the thin tube parts (6b) is in the range 0.96≤L14/L6≤0.98, the area between the thin tube parts (6b) and the current introducing element (30) is divided into a sealed area (SA) and a non-sealed area (NSA), the gap (GA) in the non-sealed area (NSA) is in the range 5.0mm3≤GA≤17.5mm3, the total light transmittance of the lamp is in the range 96-99%, and the linear transmittance of the luminous tube is at least 10%.
H01J 61/36 - Seals between parts of vesselsSeals for leading-in conductorsLeading-in conductors
H01J 61/20 - Selection of substances for gas fillingsSpecified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Electric light dimmers; voltage regulators for electric power; lighting ballasts Lighting apparatus, namely, lighting installations; light-emitting diodes; lighting fixtures; street lamps; electrical lighting fixtures for household, commercial or industrial use; outdoor and indoor electrical lighting fixtures; floodlights; light sources, namely, HID lamps and halogen lamps other than for photographic or medical use
The purpose of the present invention is to provide an LED lamp equipped with a novel cooling and heat radiation means. The lamp comprises: a plurality of LED elements (18); a light source support (14) extending along the axial line of a lamp while supporting the LED elements on the lateral surface; and a hermetically sealed glass container (6) surrounding the light source support and sealing in a low molecular weight gas as a cooling gas. The light source support surrounds a cooling gas flow channel along the axial line of the lamp and, in addition to a gas inlet and outlet located on both ends of the light source support, has gas inlets and outlets (26) between both ends.
F21S 2/00 - Systems of lighting devices, not provided for in main groups or , e.g. of modular construction
F21V 19/00 - Fastening of light sources or lamp holders
F21V 29/00 - Protecting lighting devices from thermal damageCooling or heating arrangements specially adapted for lighting devices or systems
F21V 29/02 - Cooling by forcing air over or around the light source (cooling arrangements structurally associated with electric lamps H01J 61/52, H01K 1/58)
F21Y 101/02 - Miniature, e.g. light emitting diodes (LED)
The purpose of the present invention is to provide a high-wattage ceramic metal halide lamp that maintains high luminous efficiency. This high-wattage ceramic metal halide lamp is equipped with an arc tube in which at least mercury and a metal halide are encapsulated. The arc tube has a thick tube section and a pair of thin tube sections that are formed on either end of the thick tube section, and a current-introducing body is run inside each thin tube section. The outer diameter (L4) of the current-introducing body relative to the inner diameter (L6) of the thin tube section is in the range of 0.96 ≤ L14/L6 ≤ 0.98. The area between the thin tube section and the current-introducing body is divided into a sealed area and a non-sealed area, and an air gap (GA) formed in the non-sealed area is in the range of 5.0mm3 ≤ GA ≤ 17.5mm3.
An objective of the present invention is to provide a sealed beam-shape discharge lamp comprising a reflector which is optimized for each lamp. A sealed beam-shape discharge lamp comprises: a reflector having an open end on one side, a closed end on another side, and which is formed in a concave curved surface shape overall; a light reflecting surface which is formed in the inner circumference face of the reflector; a translucent cover (3) which is bonded to completely cover the open end side of the reflector; a metal base cap which is attached to the closed end side of the reflector; a light emitting tube which is positioned within a space which is encompassed with the reflector and the translucent cover; and ferrules which are respectively embedded in the reflectors and which are routes of two leads which respectively extend from both ends of the light-emitting tube. A region of the light reflecting surface on the closed end side of the reflector is demarcated for each lamp by a discharge within an outer sphere during evacuation caused by a high-voltage pulse.
Provided is a ceramic metal halide lamp that is favorable for illuminating fresh foods in the manner of a high-chroma, high-color-rendering, high-pressure sodium lamp. A method for producing the ceramic metal halide lamp, which has a light-emitting tube formed from a translucent ceramic in which are sealed a starting noble gas, mercury, and an additive, and a translucent outer tube that houses the light-emitting tube, contains: a wavelength region splitting step for splitting the wavelength region (380-780 nm) of visible light into the four wavelength regions of a violet-blue color system, a green color system, a yellow color system, and an orange-red color system; and an additive setting step for setting the composition and amount added of the additive in a manner so that the ratio of the integrated value of the energy strength of light from the light-emitting tube calculated for each of the four wavelength regions is 6±3:18±5:6±3:70±11 (where the total value is 100).
H01J 61/20 - Selection of substances for gas fillingsSpecified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
Provided is a ceramic metal halide lamp that can achieve a correlated color temperature on the order of 2500 K without sacrificing lamp life. An additive contains thallium iodide (TlI), sodium iodide (NaI), calcium iodide (CaI2), lithium iodide (LiI), and a rare earth metal iodide, and is further configured in a manner so that the correlated color temperature is 2250-2750 K, the bulb wall loading is 20-30 W/cm2, and the rated output is 35-400 W. When the mole ratio of sodium iodide to the total number of moles of the additive is M(NaI) (in mol%) and the sum of the mole ratio of the rare earth metal iodide (ReI3) and the mole ratio of thallium iodide (TlI) is M(ReI3+TlI) (in mol%), 4 < M(NaI)/M(ReI3+TlI) < 16 and 2 mol% < M(ReI3+TlI) < 9 mol%.
H01J 61/20 - Selection of substances for gas fillingsSpecified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
H01J 61/88 - Lamps with discharge constricted by high pressure with discharge additionally constricted by envelope
The invention enables measurement of glare needed for glare evaluation at low cost. The invention configures a glare measurement system (1) provided with: a photographic camera (2) supported so as to be capable of rotating in a horizontal plane; and a processing device (4) that on the basis of photographic images (7) from the photographic camera (2), computes an equivalent veiling luminance, and on the basis of the equivalent veiling luminance, computes the value of a glare rating (GR). The photographic camera (2) has an ultrawide-angle lens (10) mounted thereon, and photographs at positions rotated to within the horizontal plane, said positions being at each angle corresponding to the angle of view (α) of the ultrawide-angle lens (10). The processing device (4): from the photographic images (7), composites a composite image (30) centered on a glare measurement direction (C); on the basis of the composite image (30), computes the equivalent veiling luminance; and on the basis of the equivalent veiling luminance, computes the value of the glare rating (GR) in the glare measurement direction (C).
Provided is a brightness-measuring apparatus capable of measuring the brightness of a road with high precision using image processing. A brightness-measuring apparatus (1) for measuring the brightness of a road, wherein the brightness-measuring apparatus (1) is provided with an image-capturing unit (10) for capturing an image of a road, an input unit (11) for inputting information related to the road being captured, and a brightness-measuring unit (12) for specifying a region (A) subject to brightness measurement on the basis of the information input by the input unit (11) and for measuring the brightness in the region (A) subject to brightness measurement on the basis of an image (I2) captured using the image-capturing unit (10). The brightness-measuring unit (12) divides the region (A) subject to brightness measurement of the captured image (I2) into a grid (17) having a predetermined number of lattice intersection points (MP) in the equivalent of plan view, and assigns brightness measurement points to each lattice intersection point (MP).
Provided is a ceramic metal halide lamp (1) in which two light-emitting tubes (3a, 3b) are arranged electrically in series inside the same outer globe (2), wherein, by arranging the two light-emitting tubes (3a, 3b) in such a way that light-emitting sections thereof do not overlap, decline in lifespan due to the heat of one light-emitting tube causing the temperature of the other light-emitting tube to increase and lighting failure due to an increase in lamp voltage do not occur, and by setting the distance from an electrode tip at a metal-cap (4) side of the first light-emitting tube (3a) to an electrode tip at a lamp-top side of the second light-emitting tube (3b) to be equal to or less than 3.5 times the average inter-electrode distance of both light-emitting tubes (3a, 3b), a preferable distribution of light is implemented.
Provided is a lamp that utilizes a light-emitting device as a light source and is capable of producing an HID lamp-like high output. This lamp is provided with: multiple plate-shaped light source units (10) each of which has a mounting substrate (12) where LEDs (11) are mounted on the front surface (13A) of a base substrate (13), and which are arranged around an axial line (K) with the back surfaces (13B) of the base substrates faced inward; and a support (20) which is provided on the axial line (K). The multiple light source units (10) are supported by the support (20), and room (R) for air distribution is provided on the back surface (13B) side of the respective base substrates (13).
The present invention provides a method for inactivation by electron beam irradiation, and a treatment apparatus, whereby irrespective of the shape of the object to be treated and/or the retention form of the object to be treated, microorganisms can be inactivated uniformly with a simple configuration, and also whereby damage to the object to be treated caused by electron beams can be reduced in spite of the use of electron beams. A treatment apparatus for inactivating microorganisms as in one embodiment of the present invention is provided with: a treatment chamber; an electron beam irradiation device for irradiating the inside of the treatment chamber with electron beams; a retaining unit for retaining the object to be treated, the retaining unit being furnished within the treatment chamber; and a gas nozzle configured so as to supply a predetermined gas that has been excited by electron beams to the object to be treated retained by the retaining unit.
Provided is a high-voltage discharge lamp lighting device that performs current waveform control for flicker suppression in a high-wattage lamp. A high-voltage discharge lamp lighting device provided with: a power supply circuit for supplying an AC current to a high-voltage discharge lamp having a rated power of 200-330 W; a detection circuit for detecting the lamp voltage; and a controller for controlling the output current waveform of the power supply circuit on the basis of the detection lamp voltage; wherein a configuration is present in which: 1 unit of the AC current comprises a current portion (I1) maintained for m cycles at frequency (f1) and a square-wave current portion (I2) maintained for n cycles at frequency (f2); a half cycle of the current portion (I1) comprises a high-frequency peak current portion (Ip) and a base current portion (Ib) comprising a half-cycle square wave; the peak current portion is such that the current peak value of the half-cycle on the side having the same polarity as the immediately preceding base current portion is higher than the base current portion; and the controller controls the power supply circuit so as to increase the ratio of the time (n/f2) for which the current portion (I2) is maintained relative to the increase in the detection lamp voltage.
[Problem] To provide a high watt ceramic metal halide lamp illumination device in which a plurality of arc tubes (for example, two tubes) capable of being lighted smoothly are connected in series. [Solution] This high watt ceramic metal halide lamp illumination device comprises: a stabilizer (26) receiving a primary input voltage (24) and outputting a secondary voltage; and a lamp (10) having a plurality of arc tubes (12a, 12b) electrically connected in series inside an outer bulb (16) and being lighted by receiving the secondary voltage output from the stabilizer. The secondary voltage output from the stabilizer has a waveform that at least satisfies a maximum-value-to-effective-value ratio (Vmax/Veff) of greater than 20.5. When using two 360 W arc tubes of a general-purpose type by electrically connecting the two in series instead of a 700 W arc tube of a high-watt type, for example, it is preferable to use a triangular waveform AC voltage that satisfies 260 V ≤ Veff(triangular waveform) when expressed by the effective value and 500 V ≤ Vmax(triangular waveform) when expressed by the maximum value.
H05B 41/24 - Circuit arrangements in which the lamp is fed by high-frequency AC
84.
ACTIVE OXYGEN VOLUME MEASUREMENT DEVICE, ACTIVE OXYGEN SURFACE PROCESSING DEVICE, ACTIVE OXYGEN VOLUME MEASUREMENT METHOD, AND ACTIVE OXYGEN SURFACE PROCESSING METHOD
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Japan)
TOKAI UNIVERSITY EDUCATIONAL SYSTEM (Japan)
IWASAKI ELECTRIC CO., LTD. (Japan)
Inventor
Noda, Kazutoshi
Iwamori, Satoru
Kinoshita, Shinobu
Iwasaki, Tatsuyuki
Yoshino, Kiyoshi
Matsumoto, Hiroyuki
Abstract
An objective of the present invention is to accurately measure an active oxygen surface effect volume in a surface process using active oxygen. This active oxygen volume measurement device comprises: a first sensor further comprising a first oscillator which is positioned near an object to be processed, and which outputs a mass change in the first oscillator based on the active oxygen effect volume as a first frequency change quantity; a second sensor further comprising a second oscillator which is positioned near the object to be processed, and which outputs a mass change in the second oscillator based on a disturbance caused by a change in temperature, humidity, or pressure, as a second frequency change quantity; and a measurement unit which is configured to compute the difference between first frequency change quantity and the second frequency change quantity, and to identify the difference as a frequency change quantity by the actual active oxygen effect volume.
G01N 5/02 - Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
B01J 19/08 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor
B01J 19/12 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor employing electromagnetic waves
B08B 7/00 - Cleaning by methods not provided for in a single other subclass or a single group in this subclass
85.
HIGH-VOLTAGE DISCHARGE LAMP LIGHTING DEVICE AND LIGHT SOURCE DEVICE
Provided is a high-voltage discharge lamp lighting device having a simple control structure that ensures the service life of a lamp while preventing flickering and blinking by setting an appropriate value as a peak value of a high-frequency current portion with respect to a peak value of a base low-frequency current portion. The high-voltage discharge lamp lighting device is provided with: a power supply circuit for supplying an alternating current to the high-voltage discharge lamp; a detection circuit for detecting a lamp voltage and a lamp current; and a control unit for controlling the waveform of an output current of the power supply circuit on the basis of the detected lamp voltage and current. The high-voltage discharge lamp lighting device is configured in such a manner that the control unit controls the power supply circuit such that one unit of alternating current becomes composed of a base low-frequency wave portion comprising a half-cycle-long rectangular wave and a one-cycle-long high-frequency wave portion, a peak value of at least the second half cycle of the high-frequency wave portion becomes a linear function of the lamp voltage, and the lamp power becomes constant throughout the one unit of alternating current. When in a range lower than a predetermined lamp voltage, the peak value of the second half cycle of the high-frequency wave portion becomes lower than the peak value of the base low-frequency wave portion.
Provided is a ceramic metal halide lamp having a function of instantly shutting off a large lamp current that may possibly damage a luminous tube. A ceramic metal halide lamp (8) has a ceramic luminous tube (12) inside an outer glove. The ceramic luminous tube (12) is constituted by integrally forming a light-emitting section and small tube sections joined to both ends of the light-emitting section. An overcurrent control means is connected in series with the luminous tube. The overcurrent control means comprises a fuse (24) wherein if a lump current flows beyond a breaking capacity defined by the below-mentioned (Formula 1), the fuse (24) is instantly melted. Breaking capacity characteristics: I = 6.0 (I0) 0.5 + 4 (Formula 1), where I0 is a rated lamp current (unit: A) and I is a lamp current (a current actually flowing in a lamp. Unit: A).
A switching power supply device includes a case, a board that has circuit parts containing a switching element mounted thereon and is accommodated in the case, and a heat sink that is provided in the case so as to partition the inside of the case into a part mount chamber having the board accommodated therein and an air flow path through which air flows. The switching element of the circuit parts is mounted on the board while brought into contact with a surface of the heat sink that faces the part mount chamber, and cooled through the heat sink by the air flowing in the air flow path.
Provided is a high-color-rendering and high-efficiency lamp in a metal halide lamp in the 100-W class or less. A metal halide lamp provided with a ceramic light-emitting tube and having a rated power of 35-100 W and a color temperature of 2800-3700 K, wherein a halogen additive is sealed as the light-emitting substance in the light-emitting tube, and the halogen additive comprises: (1) cerium (Ce); (2) sodium (Na); (3) calcium (Ca); (4) thallium (Tl); and (5) one or more rare earth metals selected from the group consisting of dysprosium (Dy), thulium (Tm), and holmium (Ho). The halogen additive is an iodide, and the composition ratios in the halogen additive are: 1.5 mol% to 3 mol% of cerium iodide; 45 mol% to 90 mol% of sodium iodide; 5 mol% to 15 mol% of calcium iodide; and 2 mol% to 7 mol% of thallium iodide.
H01J 61/20 - Selection of substances for gas fillingsSpecified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
Provided is a ceramic metal halide lamp illumination device in which only a single easily lit light-emitting tube is lit from among a plurality of light-emitting tubes, the purpose being to shorten the restart time and achieve an instantaneous restart. An illumination device comprises a ceramic metal halide lamp and a drive circuit. The ceramic metal halide lamp has a plurality of light-emitting tubes within a single outer globe. In the lamp, only a single easily lit light-emitting tube is normally lit. In order to suppress heat transmission from one light-emitting tube that is lit to another light-emitting tube that is not lit, a translucent heat-screening member is arranged among the plurality of light-emitting tubes. On restarting, the drive circuit applies a pulse voltage of 2.5 to 4.5 kV to the lamp.
To prevent bending of an electrode shaft portion by a method which requires minimum increase in production cost, in an electrode mount for a high pressure discharge lamp. A manufacturing method of an electrode mount for the high pressure discharge lamp includes: a process of subjecting the electrode mount to a heat treatment, the electrode mount including an electrode and a metal foil which are welded to each other; and an oxidation process of producing an oxide on a surface of the electrode shaft portion of the electrode by laser irradiation to form an oxidation portion on the surface, wherein a laser irradiation position is determined such that a whole or part of the oxidation portion is included in a sealing portion of the high pressure discharge lamp when the electrode mount is embedded in the sealing portion.
H01J 9/00 - Apparatus or processes specially adapted for the manufacture of electric discharge tubes, discharge lamps, or parts thereofRecovery of material from discharge tubes or lamps
H01J 61/36 - Seals between parts of vesselsSeals for leading-in conductorsLeading-in conductors
H01J 61/20 - Selection of substances for gas fillingsSpecified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
H01J 61/86 - Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
The present invention makes adjustment of a lamp position easy with visual observation. In this lamp position adjusting method for an illuminating device (10) that is provided with a lamp (12) and a light focusing mirror (14) that focuses the light of the lamp (12) and outputs a light beam focused by the light focusing mirror (14), an arc monitor plate (32), which is a diffusion plate, that defuses and transmits the focal image is disposed at a second focal point (f2) of the focusing mirror (14). A light reducing filter (33) for which the transmittivity of the center part (33A) is higher than that of the peripheral part (33B) is disposed at the back side of the arc monitor plate (32) with the center part (33A) aligned with the optical axis (K) of the light beam. An index plate (34) is disposed at the back side of this light reducing filter (33), and the position of the lamp (12) is adjusted based on a light spot (L) for the focused image of the arc monitor plate (32) projected onto this index plate (34).
An ultraviolet irradiator including a housing having an ultraviolet irradiation port through which the target is irradiated with the ultraviolet light, an ultraviolet lamp that emits ultraviolet light, a water-cooling jacket in which the ultraviolet lamp is mounted, a reflection plate that reflects light emitted from the ultraviolet lamp, the ultraviolet lamp, the water-cooling jacket and the reflection plate being mounted in the housing, and ultraviolet light emitted directly from the ultraviolet lamp and reflection light reflected from the reflection plate being irradiated to the outside of the housing, a heat withdrawing mechanism that withdraws heat of the reflection plate and discharges the heat to the outside of the housing; and a heat transfer member that transfers ambient heat in the housing to the heat withdrawing mechanism so that the heat withdrawing mechanism withdraws the ambient heat.
B01J 19/12 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor employing electromagnetic waves
H01J 61/52 - Cooling arrangementsHeating arrangementsMeans for circulating gas or vapour within the discharge space
93.
UV enhancer for discharge lamp and manufacturing method thereof
Starting performance is improved by efficient UV-light irradiation, suppressing creeping discharge or atmospheric discharge at the outside of a glow discharge tube, and preventing cracks in a pinch seal portion even when an external force is exerted in the direction of bending a lead. In a discharge tube for emitting a UV-light, a light emitting chamber is formed on one side of a pinch seal portion for sealing an electrode assembly, and a lead protrusion port is formed on the opposite side thereof while pinching the seal portion, the lead protrusion port is formed as a sleeve having a predetermined gap relative to the lead, an external electrode disposed to the outside of the light emitting chamber includes a hold formed by bending fabrication of a metal plate.
H01J 17/44 - Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes or voltage-indicator tubes having one or more control electrodes
A novel metal halide lamp for ultraviolet irradiation, which increases the emission of ultraviolet rays near the wavelength of 365 nm, is provided. This lamp is a metal halide lamp that mainly emits ultraviolet rays, and contains a noble gas and at least mercury (Hg) and an iron component in order to emit a strong spectrum in the ultraviolet range, particularly at a wavelength of 350 to 380 nm. The enclosed iron component contains iron iodide (FeI2) and iron bromide (FeBr2) as iron halide (FeX2), and metallic iron (Fe). Expressing each of the enclosed quantities as the enclosed quantity of metallic iron A, the enclosed quantity of iron iodide B, and the enclosed quantity of iron bromide C: the quantity of metallic iron A falls within a range of 0.5 (B + C) ≤ A ≤ 10.0 (B + C) mol/cm3; the quantity of iron halide (B + C) falls within a range of 1.0 × 10-7 ≤ (B + C) ≤ 4.5 × 10-7 mol/cm3; and the ratio of iron bromide to iron halide {C/(B + C)} falls within a range of {C/(B + C)} = 5 to 70%.
H01J 61/20 - Selection of substances for gas fillingsSpecified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
A starting light source for radiating the UV-light to a discharge chamber upon starting lighting of a high pressure discharge lamp includes a discharge tube for generating the UV-light by a starting voltage applied upon starting lighting the lamp, the discharge tube includes an internal electrode extended from a pinch seal portion formed at one end to a light-emitting portion thereof and an external electrode disposed close to or in contact with both of the light-emitting portion and the pinch seal portion, at least a portion of the external electrode disposed for the light-emitting portion includes a holder formed by bending fabrication of a metal sheet into such a shape of gripping and holding the discharge tube, and a terminal is formed to the holder for fixing and electrically connecting the external electrode to a conductor part having a polarity opposite to that of the internal electrode.
H01J 61/54 - Igniting arrangements, e.g. promoting ionisation for starting
H01J 61/92 - Lamps with more than one main discharge path
H01J 61/86 - Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
Provided is a ceramic metal halide lamp (10) configured so that a single readily lightable tube is lit from among two luminescent tubes (4-1, 4-2), wherein unevenness of radiation is reduced and a uniform light distribution is achieved. The ceramic metal halide lamp (10) comprises: two luminescent tubes (4-1, 4-2), of which only a single readily lightable tube is always lit; and an outer bulb (2) for sealing in the two luminescent tubes. A diffusion film (2f) is formed on the outer bulb, light rays from the single luminescent tube in the lit state are partially diffused by the diffusion film, and the in-line transmittance (SR) of the diffusion film is 5% < SR < 50%.
To prevent a lead wire that has been connected to one light-emitting tube from coming into contact with a conductive wire having a different potential when the light-emitting tube is burst or broken. A ceramic metal halide lamp provided with a plurality of light-emitting tubes, one of which is selectively lit, the ceramic metal halide lamp comprising: a first conductive wire connected to one end of each light-emitting tube and a second conductive wire connected to the other end of each light-emitting tube; a plurality of protection sleeves arranged around the respective light-emitting tubes; a frame holding the plurality of light-emitting tubes and protection sleeves; and an outer bulb housing the light-emitting tubes, the first conductive wires, the second conductive wires, the protection sleeves and the frame. The second conductive wire is electrically connected to the frame. The frame and the first conductive wire are electrically connected to a power source via an external driving circuit. The ceramic metal halide lamp further includes a fixing member for fixing the plurality of protection sleeves to the frame, the fixing member being arranged at a position isolated from the first conductive wire.
An electrode mount for a high-pressure discharge lamp of the present invention prevents bending of an electrode shaft, by a method that minimizes increases in production costs. A production method for electrode mounts for high-pressure discharge lamps comprises: a step for heat treating mutually welded electrodes and an electrode mount comprising gold foil; and an oxidizing step for forming an oxidized section that generated oxides by laser irradiation on the surface of the electrode shaft section. In said production method the laser irradiation position is determined such that all or part of the oxidized section is included in a sealed section when the electrode mount is embedded in the sealed section of the high-pressure discharge lamp.
Provided is a lamp that includes a spacer made of a metal thin plate and attached to a tip portion of an inner tube. The spacer supports the inner tube concentrically relative to an outer tube by interposing band plates between the inner tube and the outer tube. The band plates maintain a predetermined interval between the inner tube and the outer tube. In order to reduce the density of shade generated by band plates (9, 9 …) of a spacer (S) shielding light emitted through an inner tube (3), the band plates (9, 9 …) of the spacer (S) are inclined in the circumferential direction of the inner tube (3) relative to an optical axis (L) of a lamp (1). The spacer (S) is attached to and supported on an exhaust pipe (7) in such a manner that the exhaust pipe (7), protruding from the center in the tip portion of the inner tube (3), is inserted through a hole (10). The band plates (9, 9 …) protrude from the circumferential edge of a central plate (8) of the spacer (S) and extend toward a proximal portion (3b) of the inner tube (3).
