WO2011004796A1 - 発光装置 - Google Patents
発光装置 Download PDFInfo
- Publication number
- WO2011004796A1 WO2011004796A1 PCT/JP2010/061424 JP2010061424W WO2011004796A1 WO 2011004796 A1 WO2011004796 A1 WO 2011004796A1 JP 2010061424 W JP2010061424 W JP 2010061424W WO 2011004796 A1 WO2011004796 A1 WO 2011004796A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- emitting device
- phosphor
- led elements
- color temperature
- Prior art date
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 45
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 230000005855 radiation Effects 0.000 claims description 4
- 238000009877 rendering Methods 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 description 5
- 230000005284 excitation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052693 Europium Inorganic materials 0.000 description 3
- 229910002601 GaN Inorganic materials 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 229920002050 silicone resin Polymers 0.000 description 3
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- -1 gallium nitride compound Chemical class 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/395—Linear regulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Definitions
- the present invention relates to a light emitting device capable of favorably controlling the color temperature of white light.
- a light emitting device that emits white light using three types of LED elements, a red LED element, a green LED element, and a blue LED element, is known.
- the light-emitting device is used as room lighting, there is a demand for changing the color temperature of white light such as cold white, warm white, and warm white according to the use situation.
- Patent Document 1 it is preferable to change the white light while maintaining the natural color as much as possible. Therefore, it has been attempted to change the color temperature of white light along the black body locus or in the vicinity thereof by adjusting the supply current to the three types of LED elements.
- V f forward drop voltages
- the red LED element, the green LED element, and the blue LED element all have a narrow wavelength range of emitted light, it is difficult to control with a high color rendering property that smoothly changes from cold white to warm white to warm white. .
- the present invention has been made in view of such problems, and it is a main intended object to provide a light emitting device that can control the color temperature of white light well and is excellent in color rendering. is there.
- the light-emitting device includes a plurality of types of LED elements that emit ultraviolet rays having different wavelengths or visible light having a short wavelength, and a phosphor, and ultraviolet rays or short-wavelength visible rays emitted from the plurality of types of LED elements. And a single wavelength conversion member that derives white light and a current control unit that changes a current value supplied to the plurality of types of LED elements. Examples of short-wavelength visible light include violet light, blue light, and green light, and ultraviolet light includes near ultraviolet light.
- ultraviolet rays of different wavelengths or short-wavelength visible rays emitted from a plurality of types of LED elements are converted by the same wavelength conversion member, so that a plurality of white lights having different color temperatures are the same. It is possible to obtain natural white light that can be mixed well in the wavelength conversion member and the color temperature can change along the black body locus or the vicinity thereof.
- the color temperature of white light can be adjusted with one package containing a plurality of types of LED elements, so that a plurality of types of phosphors having different distributions can be used.
- a conventional light emitting device that adjusts the color temperature of white light using a package it is possible to reduce the size, and accordingly, the manufacturing cost can be reduced.
- those having a radiation peak at 200 to 430 nm are preferably used, and more preferably those having a radiation peak in a wavelength region of 360 to 430 nm.
- the plural types of LED elements are preferably arranged alternately (alternately) on the same substrate.
- white light emitted from the wavelength conversion member excited by each type of LED element is easily mixed, and white light having a color temperature intermediate between the color temperatures of the white light can be obtained satisfactorily. Can do.
- a light source position can also be made uniform.
- the phosphor examples include phosphors emitting red light (hereinafter referred to as red phosphors), phosphors emitting green light (hereinafter referred to as green phosphors), and phosphors emitting blue light (hereinafter referred to as blue phosphors). (Referred to as a phosphor).
- red phosphors red light
- green phosphors green light
- blue phosphors blue light
- the excitation efficiency (conversion efficiency to blue light) of the blue phosphor varies depending on the wavelength of ultraviolet light or short wavelength visible light that is the excitation light
- the green phosphor has blue light in addition to ultraviolet light or short wavelength visible light.
- the red phosphor is also excited by blue light and green light in addition to ultraviolet light or short wavelength visible light.
- the blue phosphor, the green phosphor, and the red phosphor are used in combination, so that the green light and the red light emitted from the green phosphor and the red phosphor are changed. Since the light intensity also changes, natural white light with different color temperatures can be obtained. By mixing these, white light whose color temperature changes along the black body locus or the vicinity thereof can be obtained. Note that even if only the light intensity of blue light is changed, white light whose color temperature changes along the black body locus or in the vicinity thereof cannot be obtained.
- the color temperature of white light can be changed along the black body locus or in the vicinity thereof, a light emitting device with excellent color rendering can be obtained.
- the light emitting device 1 includes a power source 2, an LED package 3 including a first LED element 321 and a second LED element 322, and these LED elements 321 and 322, respectively.
- the variable resistors 41 and 42 connected to the control device 5 and the control device 5 are provided.
- the power supply 2 has a voltage larger than the voltage drop of the first LED element 321 and the second LED element 322.
- the LED package 3 includes a base 31 having a recess 312 that opens on an upper end surface 311, and a first LED element 321 and a second LED mounted on a bottom surface 313 of the recess 312.
- An element 322, a translucent member 34 that seals the LED elements 321 and 322, and a wavelength conversion member 35 containing a phosphor are provided.
- the base 31 has a recess 312 that opens to the upper end surface 311 and is formed by molding an insulating material having high thermal conductivity such as alumina or aluminum nitride.
- Such a base body 31 mounts the LED element 3 described later on the bottom surface 313 of the recess 312, and the bottom surface 313 has a wiring conductor (not shown) for electrically connecting the LED element 3. .) Is formed.
- This wiring conductor is led to the outer surface of the light emitting device 1 through a wiring layer (not shown) formed inside the base 31 and connected to the external electric circuit board, whereby the LED element 3 and the external electric circuit board are connected. Are electrically connected.
- a metal thin film with high reflectivity is formed on the inner surface including the side surface 314 and the bottom surface 313 of the concave portion 312 of the base 31 by applying metal plating such as silver, aluminum, gold, etc., and functions as a reflector. is doing.
- the LED elements 321 and 322 emit ultraviolet rays or visible light having a short wavelength, and have a radiation peak at 200 to 430 nm, for example.
- the LED element 3 is formed by laminating a gallium nitride-based compound semiconductor in the order of an n-type layer, a light-emitting layer, and a p-type layer on a sapphire substrate or a gallium nitride substrate.
- the first LED element 321 and the second LED element 322 have different emission peaks.
- an LED element having an emission peak at 395 nm and an LED element having an emission peak at 410 nm are used in combination.
- an LED element having an emission peak at 365 nm and an LED element having an emission peak at 405 nm are used in combination.
- three LED elements 321 and 322 are used and arranged alternately (alternately) on the bottom surface 313 of the recess 312 of the same base 31.
- LED elements 321 and 322 are flip-chip mounted on the bottom surface 313 of the recess 312 using solder bumps, gold bumps or the like (not shown) with the gallium nitride compound semiconductor facing down (the bottom surface 313 side of the recess 312). Yes.
- the LED elements 321 and 322 having different wavelengths have independent circuits.
- the translucent member 34 is filled in the recess 312 and seals the LED elements 321 and 322.
- the translucent member 34 is made of a silicone resin that has excellent translucency and heat resistance and has a small refractive index difference from the LED element 3. It will be. When such a translucent member 34 is provided, the light extraction efficiency from the LED elements 321 and 322 can be improved, and thermal deterioration of the phosphor can be prevented.
- the wavelength conversion member 35 is provided on the translucent member 34 and contains a red phosphor, a green phosphor and a blue phosphor inside.
- the red phosphor include a europium activated silicon oxynitride phosphor having an emission peak wavelength of 640 nm.
- the green phosphor include an europium activated silicate phosphor having an emission peak wavelength of 530 nm.
- the blue phosphor include a europium activated aluminate phosphor having an emission peak wavelength of 460 nm.
- Examples of such a wavelength conversion member 35 include those in which a phosphor is dispersed in a silicone resin that is excellent in translucency and heat resistance and has a small refractive index difference from the translucent member 34.
- An uncured silicone resin in which a phosphor is dispersed may be filled in the recesses 312 or a sheet processed into a predetermined size may be used.
- variable resistors 41 and 42 have three terminals, the resistance between the terminals at both ends is constant, and the resistance value between the center terminal and the terminals at both ends is changed by turning the shaft. Accordingly, the current amounts I 1 and I 2 flowing through the LED elements 321 and 322 are reversibly adjusted.
- the control device 5 is configured by a digital or analog electric circuit having a CPU, a memory, an A / D converter, a D / A converter, and the like, and may be dedicated or partly or wholly.
- a general-purpose computer such as a personal computer may be used. Further, it may be configured such that the functions of the respective units are achieved by using only an analog circuit without using a CPU, and need not be physically integrated, but includes a plurality of devices connected to each other by wire or wirelessly. It may be a thing.
- a predetermined program is stored in the memory, and the CPU and its peripheral devices are cooperatively operated according to the program, thereby at least functioning as a color temperature receiving unit 51, a light amount receiving unit 52, and a current control unit 53. It is comprised so that it may do.
- the color temperature receiving unit 51 includes, for example, a dial, and receives color temperature data having a color temperature value selected from 1800 to 16000K by turning the dial.
- the light quantity reception unit 52 includes, for example, a dial and receives light quantity data having a light quantity value (brightness) selected by turning the dial.
- the current control unit 53 acquires the color temperature data from the color temperature reception unit 51 and the light amount data from the light amount reception unit 52, generates a control signal based on the color temperature data and the light amount data, and generates the control signal. It outputs to each variable resistance 41 and 42, and adjusts a resistance value.
- the operator inputs color temperature data having a predetermined color temperature value by turning the dial (step S1), and the color temperature receiving unit 51 receives the color temperature data (step S2).
- the operator inputs light amount data having a predetermined light amount value by turning the dial (step S3), and the light amount receiving unit 52 receives the light amount data (step S4).
- the current control unit 53 acquires the color temperature data from the color temperature receiving unit 51 and the light amount data from the light amount receiving unit 52, and performs predetermined calculation processing based on the color temperature data and the light amount data.
- the ratio I 1 : I 2 of the current values flowing through the LED elements 321 and 322 and the total flow value I 1 + I 2 of the current flowing through the LED elements 321 and 322 are calculated.
- the resistance values V 1 and V 2 are calculated, control signals having the resistance values V 1 and V 2 are generated, and output to the variable resistors 41 and 42 (step S5).
- Each of the variable resistors 41 and 42 receives the control signal, and changes its resistance values V 1 and V 2 in accordance with the control signal (step S6).
- step S7 When the resistance values V 1 , V 2 of the variable resistors 41, 42 are changed, the current values I 1 , I 2 flowing through the LED elements 321, 322 vary, and the light quantity values emitted by the LED elements 321, 322 are changed. It fluctuates (step S7).
- the color temperature and the amount of white light emitted from the LED package 3 are controlled.
- ultraviolet rays having different wavelengths or visible rays having short wavelengths emitted from the two types of LED elements 321 and 322 mounted on the same base 31 are the same wavelength conversion member. Therefore, two types of white light having different color temperatures are mixed well in the same package 3 to obtain natural white light whose color temperature can change along the black body locus or the vicinity thereof. Can do.
- the excitation efficiency (conversion efficiency to blue light) of the blue phosphor varies depending on the wavelength of ultraviolet light or short wavelength visible light that is the excitation light, and the green phosphor is in addition to ultraviolet light or short wavelength visible light.
- the red phosphor is also excited by blue light and green light in addition to ultraviolet light or short wavelength visible light.
- the blue phosphor, the green phosphor, and the red phosphor are used in combination, the light intensity of the blue light emitted from the blue phosphor changes, so that the green light and the red light emitted from the green phosphor and the red phosphor are changed. Since the light intensity also changes, natural white light with different color temperatures can be obtained. By mixing these, white light whose color temperature changes along the black body locus or the vicinity thereof can be obtained.
- the color temperature of white light can be adjusted with one package 3 containing two LED elements 321 and 322. Therefore, a plurality of types with different phosphor distributions are used. Compared with a conventional light emitting device that adjusts the color temperature of white light using this package, it is possible to reduce the size, and accordingly, the manufacturing cost can be reduced.
- the present invention is not limited to the above embodiment.
- the LED package 3 may be one in which LED elements 321 and 322 are alternately arranged on the same long substrate. If so, it can be used as an alternative to a fluorescent tube having a dimming function.
- the current control method is not particularly limited. For example, (1) constant current dimming with a variable current source, (2) constant voltage dimming with a variable voltage source and a limiting resistor, (3) constant Alternatively, pulse width dimming or PWM dimming using a variable voltage source and a limiting resistor, or (4) pulse width dimming or PWM dimming using a constant or variable current source and a limiting resistor may be used.
- the phosphor contained in the wavelength conversion member 35 is not particularly limited to a blue phosphor, a green phosphor and a red phosphor, and may be a combination of a blue phosphor and a yellow phosphor.
- the LED elements used in the LED package 3 are not limited to two types, and may be three or more types.
- the number of LED elements of each type may be one or two or more. It may be one by one.
- the LED elements of the same type do not need to be connected in series with each other, for example, may be connected in parallel, or a combination of series and parallel may be used.
- the LED elements 321 and 322 may be connected to a wiring conductor provided on the base 31 using wire bonding.
- the light-emitting device may not include a variable resistor.
- a control circuit that can perform ON / OFF control for each of a plurality of types of LED elements that emit light of different wavelengths. May be provided.
- the LED element whose color temperature of the white light emitted from the excited wavelength conversion member is A and the LED element which is B are used, it is derived from each LED element by a combination of ON / OFF.
- White light having a color temperature A and B and white light having a color temperature C intermediate between A and B can be output, and the color temperature of the white light emitted from the light emitting device can be changed in three ways.
- the switch may be any switch as long as only the LED element whose color temperature is A is ON, only the LED element whose color temperature is B is ON, both ON, and both OFF.
- the maximum color temperature is as follows: Can be controlled.
- n C i is a symbol representing a combination of selecting different i items from different n items.
- the present invention is not limited to the above-described embodiments, and may be configured by appropriately combining some or all of the various configurations described above without departing from the spirit of the present invention.
- the light emitting device can change the color temperature of white light along the black body locus or the vicinity thereof, light with excellent color rendering can be obtained.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
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- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
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Abstract
Description
電源2は、その電圧が第1のLED素子321及び第2のLED素子322の降下電圧より大きいものである。
31・・・基体
321、322・・・LED素子
35・・・波長変換部材
53・・・電流制御部
Claims (5)
- 異なる波長の紫外線又は短波長の可視光線を発する複数種類のLED素子と、
蛍光体を含有し、前記複数種類のLED素子から発した紫外線又は短波長の可視光線を変換して白色光を導出する単一の波長変換部材と、
前記複数種類のLED素子へ供給する電流値を変化させる電流制御部と、を備えていることを特徴とする発光装置。 - 前記LED素子が、200~430nmに放射ピークを有するものである請求項1記載の発光装置。
- 前記複数種類のLED素子が、同一基材上に交互に配置されている請求項1記載の発光装置。
- 前記蛍光体は、赤色光を発する蛍光体、緑色光を発する蛍光体、及び、青色光を発する蛍光体である請求項1記載の発光装置。
- 黒体軌跡又はこの近傍に沿って色温度が変化する白色光を発する請求項1記載の発光装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10797107.9A EP2453489A4 (en) | 2009-07-07 | 2010-07-05 | LIGHT EMITTING DEVICE |
US13/380,480 US20120098460A1 (en) | 2009-07-07 | 2010-07-05 | Light emitting device |
CN2010900009853U CN202549926U (zh) | 2009-07-07 | 2010-07-05 | 发光装置 |
JP2011521911A JP5630663B2 (ja) | 2009-07-07 | 2010-07-05 | 発光装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009161132 | 2009-07-07 | ||
JP2009-161132 | 2009-07-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011004796A1 true WO2011004796A1 (ja) | 2011-01-13 |
Family
ID=43429220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/061424 WO2011004796A1 (ja) | 2009-07-07 | 2010-07-05 | 発光装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20120098460A1 (ja) |
EP (1) | EP2453489A4 (ja) |
JP (1) | JP5630663B2 (ja) |
KR (1) | KR20120031182A (ja) |
CN (1) | CN202549926U (ja) |
TW (1) | TWI440388B (ja) |
WO (1) | WO2011004796A1 (ja) |
Cited By (11)
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EP2571332A1 (en) * | 2011-09-14 | 2013-03-20 | Excellence Opto Inc. | LED illumination system |
JP2013214735A (ja) * | 2012-03-09 | 2013-10-17 | Panasonic Corp | 発光装置、これを用いた照明装置及び照明器具 |
JP2015038853A (ja) * | 2013-05-27 | 2015-02-26 | シチズンホールディングス株式会社 | Led電球 |
TWI481309B (zh) * | 2012-04-13 | 2015-04-11 | Lextar Electronics Corp | 色溫與亮度調整系統以及方法 |
WO2015145527A1 (ja) * | 2014-03-24 | 2015-10-01 | 中国電力株式会社 | 光照射によって翼形類およびフジツボ類を殺す方法 |
WO2015145526A1 (ja) * | 2014-03-24 | 2015-10-01 | 中国電力株式会社 | 付着期幼生の遊泳または匍匐停止方法 |
JP2016072521A (ja) * | 2014-09-30 | 2016-05-09 | 富士フイルム株式会社 | バックライトユニット、液晶表示装置、および色度制御方法 |
WO2016147484A1 (ja) * | 2015-03-13 | 2016-09-22 | シャープ株式会社 | 発光装置 |
WO2019107281A1 (ja) * | 2017-11-28 | 2019-06-06 | 京セラ株式会社 | 発光装置および照明装置 |
JP2020021823A (ja) * | 2018-07-31 | 2020-02-06 | 日亜化学工業株式会社 | 発光装置 |
JP2022517627A (ja) * | 2019-01-24 | 2022-03-09 | エルジー イノテック カンパニー リミテッド | 照明装置 |
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Publication number | Priority date | Publication date | Assignee | Title |
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JPWO2019107281A1 (ja) * | 2017-11-28 | 2020-12-03 | 京セラ株式会社 | 発光装置および照明装置 |
JP2020021823A (ja) * | 2018-07-31 | 2020-02-06 | 日亜化学工業株式会社 | 発光装置 |
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JP7481348B2 (ja) | 2019-01-24 | 2024-05-10 | エルジー イノテック カンパニー リミテッド | 照明装置 |
Also Published As
Publication number | Publication date |
---|---|
US20120098460A1 (en) | 2012-04-26 |
JPWO2011004796A1 (ja) | 2012-12-20 |
EP2453489A4 (en) | 2014-04-16 |
KR20120031182A (ko) | 2012-03-30 |
JP5630663B2 (ja) | 2014-11-26 |
CN202549926U (zh) | 2012-11-21 |
EP2453489A1 (en) | 2012-05-16 |
TW201110805A (en) | 2011-03-16 |
TWI440388B (zh) | 2014-06-01 |
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