WO2006076066A2 - Light emission device - Google Patents

Light emission device Download PDF

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Publication number
WO2006076066A2
WO2006076066A2 PCT/US2005/039403 US2005039403W WO2006076066A2 WO 2006076066 A2 WO2006076066 A2 WO 2006076066A2 US 2005039403 W US2005039403 W US 2005039403W WO 2006076066 A2 WO2006076066 A2 WO 2006076066A2
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WO
WIPO (PCT)
Prior art keywords
light
emission device
light emission
phosphor
led
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Ceased
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PCT/US2005/039403
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English (en)
French (fr)
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WO2006076066A3 (en
Inventor
George R. Brandes
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Wolfspeed Inc
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Cree Inc
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Priority to EP05824917A priority Critical patent/EP1842218A4/en
Priority to JP2007550362A priority patent/JP4744534B2/ja
Publication of WO2006076066A2 publication Critical patent/WO2006076066A2/en
Publication of WO2006076066A3 publication Critical patent/WO2006076066A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/62—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing gallium, indium or thallium
    • C09K11/621—Chalcogenides
    • C09K11/623—Chalcogenides with zinc or cadmium
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/58—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing copper, silver or gold
    • C09K11/582—Chalcogenides
    • C09K11/586—Chalcogenides with alkaline earth metals
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/74—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing arsenic, antimony or bismuth
    • C09K11/7407—Chalcogenides
    • C09K11/7421—Chalcogenides with alkaline earth metals
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7701—Chalogenides
    • C09K11/7702—Chalogenides with zinc or cadmium
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
    • C09K11/77342—Silicates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of semiconductor or other solid state devices
    • H01L25/03—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10H20/00
    • H01L25/0753—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10H20/00 the devices being arranged next to each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • F21Y2113/17—Combination of light sources of different colours comprising an assembly of point-like light sources forming a single encapsulated light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • 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
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

Definitions

  • This invention relates generally to light emission devices incorporating light emitting diode (LED) and phosphor components.
  • LEDs have come into widespread usage as a result of their advantages, which include small size, long life, low energy consumption, and low heat generation.
  • U.S. Patent 6,513,949 issued February 4, 2003 describes a hybrid lighting system for producing white light, including at least one LED and a phosphor-LED, in which the color and number of the LEDs and/or the phosphor of the phosphor-LED may be varied.
  • U.S. Patent 6,600,175 issued July 29, 2004 describes a light emitting assembly including an LED emitting a first, relatively shorter wavelength radiation, and a down-converting luminophoric medium, e.g., phosphoric medium, that in exposure to such first radiation, responsively emits a second, relatively longer wavelength radiation.
  • a light emitting assembly including an LED emitting a first, relatively shorter wavelength radiation, and a down-converting luminophoric medium, e.g., phosphoric medium, that in exposure to such first radiation, responsively emits a second, relatively longer wavelength radiation.
  • White LED devices have been commercialized that utilize a blue LED and a YAG phosphor (Y 3 Al 5 Oi 2 doped with cerium) that partially absorbs blue radiation (centered on 470-480 nm) from the blue LED and emits light having a broad wavelength range with a dominant yellow characteristic (centered on ⁇ 550-600 nm).
  • a blue LED and a YAG phosphor Y 3 Al 5 Oi 2 doped with cerium
  • the commercially available LED/phosphor devices for production of white light do not provide high conversion efficiency color rendering in various spectral regimes of interest.
  • consumers prefer white light having color (as quantifiable by color temperature and color rendering index values) that matches sunlight, conventional incandescent bulb light, or fire light such as candle light.
  • the present invention relates to light emission devices incorporating light emitting diode (LED) and phosphor components.
  • the invention relates to a light emission device including: at least two LED dies having differing spectral output from one another; and phosphor material including one or more phosphors, arranged to receive spectral output from at least one of the LED dies and to responsively emit a phosphor output as at least part of spectral output of the light emission device.
  • the invention in another aspect, relates to a method of generating light, including exciting at least two LED dies having differing spectral output from one another, to emit spectral outputs from each of such dies, and impinging the spectral output from at least one of such dies on phosphor material including one or more phosphors, to responsively emit a phosphor output as at least part of spectral output constituting such light.
  • FIG. 1 is a sectional elevation view of a light emission device according to one embodiment of the invention.
  • FIG. 2 is a graph of intensity as a function of wavelength, for each of the LED die elements and phosphors employed in the light emission device of FIG. 1, as isolated components.
  • FIG. 3 is a graph of intensity as a function of wavelength, for the integrated output of the light emission device of FIG. 1.
  • FIG. 4 is an LED multiple die array including five different LED die colors (shown as
  • FIG. 5 is a graph of intensity as a function of wavelength, for each of the LED die elements employed in the FIG. 5 LED array, as isolated components.
  • FIG. 6 is a graph of intensity as a function of wavelength, as the integrated output of the
  • FIG. 7 is a simplified schematic depiction of a light emission device according to another embodiment of the invention, incorporating an LED multiple die array including five different LED die colors (shown as Blue LED, Aqua LED, Green LED, Yellow LED and Red
  • FIG. 8 is a graph of intensity as a function of wavelength, for each of the LED die elements and phosphor species employed in the FIG. 7 light emission device, as isolated components.
  • FIG. 9 is a graph of intensity as a function of wavelength, as the integrated output of the light emission device of FIG. 7.
  • FIG. 10 is a graphical depiction showing wavelength, in ran, and energy, in electron volts, and associated bars showing visible light spectrum, excitation range and spectral region spanned by emission, for a light emission device according to one embodiment of the invention, including two visible light LEDs (green and blue) and two phosphors.
  • FIG. 11 shows the spectral distribution arising from a combination of a 470 nm LED, a
  • FIG. 12 is a graphical depiction showing wavelength, in nm, and energy, in electron volts, and associated bars showing visible light spectrum, excitation range and spectral region spanned by emission, for a light emission device according to another embodiment of the invention, including two visible light LEDs (blue and red) and two phosphors excited only by the blue LED.
  • FIG. 13 is a graphical depiction showing wavelength, in nm, and energy, in electron volts, and associated bars showing visible light spectrum, excitation range and spectral region spanned by emission, for a light emission device according to still another embodiment of the invention, including two LEDs (ultraviolet and blue) and one phosphor.
  • the present invention relates to light emission devices incorporating light emitting diode (LED) and phosphor components.
  • Light emission devices of the invention enable excellent color rendering to be achieved by the provision of at least two LED dies having differing spectral character from one another, and a phosphor material including one or more phosphors.
  • the phosphor material is arranged to receive energy from at least one of the multiple LED dies and to responsively emit a phosphor output, as at least part of spectral output of the light emission device.
  • the light emission device has a spectral output that differs from the spectral character of each of the LED dies, and that differs from the phosphor output.
  • the light emission device of the invention may be constituted to achieve a superior color rendering that matches predetermined spectral distributions of light, e.g., sunlight, candle light (or other fire), or light produced by incandescent bulbs.
  • the light emission device of the invention may be fabricated to provide a white light output having a color temperature in one of the following white light color temperature regimes (A), (B) and (C):
  • (C) white light having a color temperature in a range of from 4950 0 K to 6050 0 K.
  • the color temperature of candles is ⁇ 1500°K
  • the color temperature of incandescent bulbs is ⁇ 2680-3000°K
  • the color temperature of sunrise and sunset is ⁇ 3200°K
  • the color temperature of a sunny day at noon is ⁇ 5500°K.
  • the spectral output of the light emission device can be white light, hi other embodiments, the spectral output of the light emission device can be light having a specific color other than white light. In still further embodiments, the spectral output of the light emission device may include output that is outside the visible iight spectrum.
  • the invention achieves superior color rendering at good conversion efficiency, and provides degrees of freedom in light emission device design that permit optimal spectral outputs to be achieved, e.g., of a specific spectral profile, or of a spectral character that is resistant to color change over the service life of the device.
  • spectral outputs e.g., of a specific spectral profile, or of a spectral character that is resistant to color change over the service life of the device.
  • phosphors and LEDs tend to age, leading to color changes over time.
  • the light emission device of the invention by virtue of its multiple LED die components and one or more phosphor components, may be fabricated and arranged to compensate for aging of LEDs and/or phosphors.
  • LED(s) and phosphor(s) that are matched to one another in their aging profiles so that there is a consistent aging of the overall device during its service life, so that the color of the output light is maintained over the entire service life, albeit possibly changing in intensity as the device ages.
  • the lifetimes of LEDs are typically measured in the tens of thousands of hours, and that the change in output over such period of time may be relatively small as regards the
  • the invention contemplates the combination of LEDs and phosphors that are selectively matched in the device including same, to achieve a predetermined character of output emission.
  • the invention in another embodiment thereof, to use a combination of LEDs and phosphors that are matched in the light emission device, to provide a change of color at a predetermined point in the service life of the device.
  • the change of color may be relatively rapid in transition, e.g., to prompt an action on the part of a user or a service technician, such as change-out of the illumination device, or change-out of a battery or other power supply means for such device, or other maintenance or service or other action that is desirably carried out after a period of operation and that is indicatable by a prompting color change.
  • the invention is discussed primarily herein in reference to the generation of a visible illumination output, i.e., in a visible illumination spectrum, the invention nonetheless also is broadly applicable to the generation of emission outputs in non-visible spectral regions, e.g., in an IR spectrum, UV spectrum or other non-visible spectrum.
  • the light emission device of the invention differs from prior LED-phosphor devices, in the provision of multiple differing LED dies, each associated with the phosphor material in the device.
  • the phosphor material can contain one or more than one phosphor species, as desired in a specific end use application of the invention.
  • the phosphor material is stimulated by radiation from LED die element(s) of the light emission device, so as to produce a phosphor output of particular spectral character.
  • the spectral output of the overall device therefore will be a composite radiation that will be "smoothed" or otherwise blended, in relation to a corresponding device with only a single LED die.
  • Individual phosphor species can be selected to absorb all or substantially all of the radiation emitted by a given LED die, or alternatively to absorb only a portion of the incident radiation thereon derived from the LED die while allowing the remainder of the emission from the LED die to transmit unabsorbed from the light emission device.
  • the light emission device is provided as a unitary article including the multiple LED dies and phosphor(s) in a protective package, in which the multiple dies are arranged in an array overlaid by the phosphor material.
  • the multiple LED dies can for example be positioned on one or more reflector cups or other support structure, with the phosphor material overlying the dies being provided as a layer of the phosphor material.
  • the phosphor material when including multiple phosphor species can be constituted as a uniform, e.g., substantially homogeneous, mixture of the respective phosphors.
  • the invention it is contemplated by the invention to shape the phosphor(s) in an overlying coating or mass on the LED(s) so as to match the thickness of the phosphor to the primary emission of the LED(s), so that the primary emission radiation traverses a generally same thickness of the phosphor coating or mass, over the entire periphery or output surfaces of the LED(s), to thereby provide better uniformity of spectral output from the illumination device.
  • the invention also contemplates the shaping of the LED die to provide a directionally enhanced emission of primary radiation, or a more uniform emission of primary radiation than is otherwise achievable in the absence of such LED die shaping. In various embodiments of the invention, therefore, it may be desirable to conformally coat phosphor material(s) on the LED die(s) to achieve a predetermined advantageous character of the light emission device.
  • the phosphor material may be applied over the multiple dies in any suitable manner, e.g., in a curable liquid formulation that is potted, dip-coated, brushed, rolled, sprayed or otherwise applied over the multiple dies, e.g., to form a layer of the phosphor material in which the phosphor component(s) are homogeneously dispersed in the layer.
  • LED dies it may be desirable in specific applications to place the LED dies in respective individual reflector cups and to mount the cups in a single "bulb" or package. Alternatively, it may be desirable to dispose all LED dies inside a single reflector package. Multiple phosphors may be spread over multiple LED dies or a select phosphor may be spread over a specific LED die. Individual LED die/phosphor packaging may be employed, with each LED die being arranged to impinge emitted energy on a phosphor to produce an integrated output light from the device. [0044] To control the amount of light emitted by the LED dies, current can be sourced individually to each of the dies, if the associated cost and complexity of wiring and power supply arrangements is suitable for the intended end use application. Alternatively, light output of the light emission device can be controlled by variation in die fabrication, die number, die shape, die size (area), contact quality, overall structure resistance, or the like, or other aspects of the LED design.
  • the phosphor material can be of any suitable type, including for example, YAG (yttrium aluminum garnet) phosphor, CaGa 2 S 4 :Eu 2+ phosphor, ZnGa 2 S 4 --Mn 2+ phosphor, SrSCu+,Na phosphor, CaSO 4 IBi phosphor or any other suitable type of phosphor material.
  • the phosphor material may include components other than the phosphor(s) per se, such as a carrier medium in which the phosphor(s) are dispersed.
  • the carrier medium includes a glass or a polymeric composition that is suitably transmissive of emitted energy, e.g., from the LED die and/or phosphor components, to provide the desired character of light output from the light emission device.
  • Polymeric compositions useful for such purpose may be of any appropriate type, including, without limitation, compositions containing polyolefin, polyimide, polysulfone, polyacrylate, polymethacrylate, polycarbonate, or corresponding copolymers.
  • the phosphor(s) may be dispersed in the carrier medium in a particulate or other discontinuous form, in an amount ensuring a desired character and extent of conversion of LED die-emitted energy to light output from the phosphor(s) in the carrier medium.
  • the provision of multiple differing LED dies in a unitary packaging with the phosphor material affords a compact and efficient structure capable of producing a high intensity light output of a desired spectral character.
  • the radiative emissions of the respective dies and phosphor(s) can be integrated in a manner achieving close matches to predetermined illumination spectra, such as a spectrum of sunlight, candle light or light emitted by a conventional incandescent filament light bulb.
  • LED dies and phosphor(s) thus can be made in a manner that results in small energy differences between the LED dies, as illuminating sources, and phosphor(s) emissively responding to impingement of energy from such dies, so that highly efficient light production is achieved.
  • FIG. 1 is a sectional elevation view of a light emission device 10 according to one embodiment of the invention.
  • the device 10 is shown in a simplified schematic form for clarity of description and illustration, without depiction of additional light extracting optics, e.g., reflecting surfaces, or focusing lens(es), and without depiction of wiring, package leads, bond structures, power supplies or the like.
  • additional light extracting optics e.g., reflecting surfaces, or focusing lens(es
  • the light emitting device 10 includes a reflector cup 12 or similar support structure, on which is mounted an LED die 14 of a first color and an LED die 16 of a second color.
  • the first LED die 14 is a blue LED die and the second LED die 16 is a green LED die.
  • the multi-die array is covered with a phosphor material 18, which in a specific embodiment may include a mixture of two phosphors dispersed in a polymeric matrix such as polycarbonate.
  • the phosphors in the phosphor material 18 are appropriately selected to be excited by radiation emitted from the multi-die array and to responsively emit output radiation, so that the integrated output of the light emission device, deriving from the multi-die array and phosphor material, is of a desired spectral character.
  • FIG. 2 is a graph of intensity as a function of wavelength, for each of the LED die elements and phosphor species employed in the light emission device of FIG. 1, as isolated components.
  • the graph shows the spectral intensity of emissions of the first LED die ("Blue
  • FIG. 3 is a graph of intensity as a function of wavelength, for the integrated output
  • Integrated Output 1 of the light emission device of FIG. 1, as including the LED dies and phosphor components whose spectra are shown in FIG. 2.
  • integrated output provides a spectral distribution that approximates the spectral distribution of candle light.
  • FIG. 4 is an LED multiple die array 22 including five different LED die colors.
  • the dies A, B, C, D and E (labeled as “Blue LED,” “Aqua LED,” “Green LED,” “Yellow LED” and
  • FIG. 5 is a graph of intensity as a function of wavelength, for each of the LED dies employed in the FIG. 5 LED die array, as isolated components.
  • the graph shows the spectral intensity of emissions of the first LED die ("Blue LED”), second LED die, ("Aqua LED”), third
  • LED die Green LED
  • fourth LED die yellow LED
  • fifth LED die Red LED
  • FIG. 6 is a graph of intensity as a function of wavelength, as the white light integrated output ("Integrated Output 2") of the LED die array of FIG. 4.
  • the integrated light consists of five discrete colors, but there are gaps in the spectral distribution as compared to the spectrum produced by a conventional incandescent filament light bulb.
  • FIG. 7 is a simplified schematic depiction of a light emission device according to another embodiment of the invention, incorporating an LED multiple die array 22 including five different LED dies A, B, C, D and E (labeled as “Blue LED,” “Aqua LED,” “Green LED,”
  • FIG. 8 is a graph of intensity as a function of wavelength, for each of the LED die elements and phosphor species employed in the FIG. 7 light emission device, as isolated components.
  • the graph shows the spectral intensity of emissions of the first LED die A ("Blue LED”), the second LED die B ("Aqua LED"), the third LED die C ("Green LED”), the fourth LED die D (“Yellow LED”) and the fifth LED die E (“Red LED”), as well as the distributions associated with the phosphor material in phosphor mixture 24, when each of such LED die and phosphor components is considered individually.
  • FIG. 9 is a graph of intensity as a function of wavelength, as the integrated output of the light emission device of FIG. 7.
  • Example 1 Light emission device including two visible light LEDs and two phosphors.
  • two LEDs an X-Brite deep blue (460nm) LED and an X-Brite green (527nm) LED, both commercially available from Kingbright Corporation, Tapei, Taiwan, are utilized to fabricate a light emission device of the type shown in FIG. 2.
  • the LEDs function as light sources and excite a phosphor mixture including two phosphors.
  • the first phosphor in the phosphor mixture is a CaGa 2 S 4 :Eu 2+ phosphor, which emits a yellowish-green light and which is excited with light having a wavelength shorter than ⁇ 480nm ( ⁇ 25% absorption).
  • the second phosphor in the phosphor mixture is a ZnGa 2 S 4 IMn 2+ phosphor, which emits an orange-red light and which is excited by light having a wavelength shorter than about 510nm ( ⁇ 50% absorption).
  • the die size of each of the two LED dies, and the concentration of each of the two phosphors in the phosphor mixture, are adjusted to achieve a spectral response similar to natural daylight at noon.
  • FIG. 10 is a graphical depiction showing wavelength, in nm, and energy, in electron volts, and associated bars showing visible light spectrum, excitation range and spectral region spanned by emission, for such light emission device, including two visible light LEDs (green and blue) and two phosphors.
  • the bars C, D, E and F show the spectral region covered by the emission from the device, and bars A and B show the excitation range for the device.
  • Example 2 Blue and red LEDs with two phosphors excited only by the blue.
  • two LEDs an X-Brite deep blue (460nm) LED and an X-Brite red (670 nm) LED, both commercially available from Kingbright Corporation, Tapei, Taiwan, are utilized to fabricate a light emission device of the type shown in FIG. 2.
  • the LEDs function as light sources and the blue is used to excite a phosphor mixture including two phosphors.
  • the first phosphor in the phosphor mixture is a SrSCu+,Na phosphor, which emits a green light centered on 530nm and which is excited with light shorter than ⁇ 490nm ( ⁇ 20% absorption).
  • the second phosphor in the phosphor mixture is a CaSO 4 :Bi phosphor, which emits a yellow orange light and which is excited by light shorter than about 510nm ( ⁇ 10% absorption).
  • the LED dies are coated by the phosphors during manufacture, with all dies being mounted in a single package to facilitate fabrication and assembly.
  • the phosphors are excited by the blue light emitted from the blue LED die, but simply transmit the red light emitted by the red LED die.
  • the die size of each of the two LED dies, and the concentration of each of the two phosphors in the phosphor mixture, are adjusted to achieve a spectral response similar to natural daylight at noon.
  • FIG. 12 is a graphical depiction showing wavelength, in nm, and energy, in electron volts, and associated bars showing visible light spectrum, excitation range and spectral region spanned by emission, for the light emission device including the two visible light LEDs (blue and red) and the mixture of two phosphors excited only by the blue LED die emission.
  • the bars C, D, E and F show the spectral region covered by the emission from the device, and bars A and B show the excitation range for the device.
  • Example 3 Ultraviolet and blue LEDs and one phosphor.
  • a MegaBrite ultraviolet (460nm) LED commercially available from Cree, Inc., Durham, NC, USA
  • an X-Brite signal green (505 nm) LED commercially available from Kingbright Corporation, Taipei, Taiwan
  • the ultraviolet LED acts to excite the phosphor while the green LED contributes to the emission to ensure that the spectral distribution produced by the light emission device closely matches the desired solar spectrum.
  • the phosphor employed in the device is a CaMgSi 2 O 6 :Eu 2+ ,Mn 2+ phosphor, which emits in the blue, yellow-green, orange and red. This phosphor is transmissive to green and the X-Brite signal green LED produces light in this spectral region. The phosphor is excited by light shorter than 410nm ( ⁇ 50% absorption). The die size of each of the two LED dies, and the concentration of the phosphor, are adjusted to achieve a spectral response similar to natural daylight at noon. [0071] FIG.
  • 13 is a graphical depiction showing wavelength, in ran, and energy, in electron volts, and associated bars showing visible light spectrum, excitation range and spectral region spanned by emission, for such light emission device incorporating two LEDs (ultraviolet and blue) and one CaMgSi 2 O 6 :Eu 2+ ,Mn 2+ phosphor.
  • the bars B, C, D and E show the spectral region covered by the emission from the device
  • bar A shows the excitation range for the device.
  • the light emission device and method of the invention enable excellent color rendering to be achieved by the provision of at least two LED dies having differing spectral character from one another, and a phosphor material including one or more phosphors, whereby light is emitted having a spectral character that differs from the spectral character of each of the LED dies, and that differs from the phosphor output.
  • Such device and method therefore provide a lighting system that may be flexibly designed to achieve a color rendering matching predetermined spectral distributions of light, e.g., sunlight, candle light (or other fire light), or light produced by incandescent bulbs.
  • Light emission systems of the invention achieve superior color rendering at good conversion efficiency, and provides degrees of freedom in light emission device design that permit optimal spectral outputs to be achieved, e.g., of a specific spectral profile, or of a spectral character that is resistant to color change over the service life of the device.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Led Device Packages (AREA)
  • Luminescent Compositions (AREA)
  • Electroluminescent Light Sources (AREA)
PCT/US2005/039403 2005-01-10 2005-11-01 Light emission device Ceased WO2006076066A2 (en)

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EP05824917A EP1842218A4 (en) 2005-01-10 2005-11-01 LIGHT-EMITTING DEVICE
JP2007550362A JP4744534B2 (ja) 2005-01-10 2005-11-01 発光デバイス

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US11/032,363 US7564180B2 (en) 2005-01-10 2005-01-10 Light emission device and method utilizing multiple emitters and multiple phosphors

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9274343B2 (en) 2012-05-02 2016-03-01 Rockwell Automation Safety Ag Lens carrier and optical module for a light curtain and fabrication method

Families Citing this family (334)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100655894B1 (ko) * 2004-05-06 2006-12-08 서울옵토디바이스주식회사 색온도 및 연색성이 우수한 파장변환 발광장치
US7564180B2 (en) * 2005-01-10 2009-07-21 Cree, Inc. Light emission device and method utilizing multiple emitters and multiple phosphors
US8125137B2 (en) 2005-01-10 2012-02-28 Cree, Inc. Multi-chip light emitting device lamps for providing high-CRI warm white light and light fixtures including the same
JP4679183B2 (ja) * 2005-03-07 2011-04-27 シチズン電子株式会社 発光装置及び照明装置
US9412926B2 (en) * 2005-06-10 2016-08-09 Cree, Inc. High power solid-state lamp
US7479660B2 (en) * 2005-10-21 2009-01-20 Perkinelmer Elcos Gmbh Multichip on-board LED illumination device
CN103925521A (zh) 2005-12-21 2014-07-16 科锐公司 照明装置
BRPI0620413A2 (pt) 2005-12-21 2011-11-08 Cree Led Lighting Solutions dispositivo de iluminação e método de iluminação
DE102005061204A1 (de) * 2005-12-21 2007-07-05 Perkinelmer Elcos Gmbh Beleuchtungsvorrichtung, Beleuchtungssteuergerät und Beleuchtungssystem
US8441179B2 (en) * 2006-01-20 2013-05-14 Cree, Inc. Lighting devices having remote lumiphors that are excited by lumiphor-converted semiconductor excitation sources
US9084328B2 (en) 2006-12-01 2015-07-14 Cree, Inc. Lighting device and lighting method
TWI460880B (zh) 2006-04-18 2014-11-11 Cree Inc 照明裝置及照明方法
US8513875B2 (en) 2006-04-18 2013-08-20 Cree, Inc. Lighting device and lighting method
US8998444B2 (en) * 2006-04-18 2015-04-07 Cree, Inc. Solid state lighting devices including light mixtures
US7821194B2 (en) * 2006-04-18 2010-10-26 Cree, Inc. Solid state lighting devices including light mixtures
EP2008019B1 (en) 2006-04-20 2015-08-05 Cree, Inc. Lighting device and lighting method
BRPI0712439B1 (pt) 2006-05-31 2019-11-05 Cree, Inc. dispositivo de iluminação e método de iluminação
US20080012981A1 (en) * 2006-07-07 2008-01-17 Goodwin Mark D Mail processing system with dual camera assembly
US20080013069A1 (en) * 2006-07-07 2008-01-17 Lockheed Martin Corporation Synchronization of strobed illumination with line scanning of camera
US20080049972A1 (en) * 2006-07-07 2008-02-28 Lockheed Martin Corporation Mail imaging system with secondary illumination/imaging window
US7855348B2 (en) * 2006-07-07 2010-12-21 Lockheed Martin Corporation Multiple illumination sources to level spectral response for machine vision camera
US20080035866A1 (en) * 2006-07-07 2008-02-14 Lockheed Martin Corporation Mail imaging system with UV illumination interrupt
KR100771772B1 (ko) * 2006-08-25 2007-10-30 삼성전기주식회사 백색 ｌｅｄ 모듈
US8029155B2 (en) 2006-11-07 2011-10-04 Cree, Inc. Lighting device and lighting method
US9441793B2 (en) 2006-12-01 2016-09-13 Cree, Inc. High efficiency lighting device including one or more solid state light emitters, and method of lighting
KR100930171B1 (ko) 2006-12-05 2009-12-07 삼성전기주식회사 백색 발광장치 및 이를 이용한 백색 광원 모듈
CN101611259B (zh) 2006-12-07 2012-06-27 科锐公司 照明装置和照明方法
TW200848783A (en) * 2007-02-15 2008-12-16 Lamina Lighting Inc High color rendering index white LED light system using multi-wavelength pump sources and mixed phosphors
US20080198572A1 (en) 2007-02-21 2008-08-21 Medendorp Nicholas W LED lighting systems including luminescent layers on remote reflectors
WO2008103876A1 (en) 2007-02-22 2008-08-28 Cree Led Lighting Solutions, Inc. Lighting devices, methods of lighting, light filters and methods of filtering light
EP2153113B1 (en) 2007-05-08 2016-01-06 Cree, Inc. Lighting device and lighting method
CN101688644B (zh) 2007-05-08 2011-06-15 科锐Led照明科技公司 照明装置及照明方法
TW200912204A (en) 2007-05-08 2009-03-16 Cree Led Lighting Solutions Lighting device and lighting method
TWI422785B (zh) 2007-05-08 2014-01-11 克里公司 照明裝置及照明方法
TW200912202A (en) 2007-05-08 2009-03-16 Cree Led Lighting Solutions Lighting device and lighting method
CN201066688Y (zh) * 2007-05-11 2008-05-28 群康科技(深圳)有限公司 发光二极管及背光模组
US7942556B2 (en) 2007-06-18 2011-05-17 Xicato, Inc. Solid state illumination device
US8791631B2 (en) 2007-07-19 2014-07-29 Quarkstar Llc Light emitting device
US8297061B2 (en) * 2007-08-02 2012-10-30 Cree, Inc. Optoelectronic device with upconverting luminophoric medium
US7863635B2 (en) 2007-08-07 2011-01-04 Cree, Inc. Semiconductor light emitting devices with applied wavelength conversion materials
TW200910287A (en) * 2007-08-31 2009-03-01 Ledtech Electronics Corp Array type light-emitting device with high color rendering index
TWI331397B (en) * 2007-09-03 2010-10-01 Ledtech Electronics Corp Array type light-emitting device with high color rendering index
DE202007019100U1 (de) 2007-09-12 2010-09-02 Lumitech Produktion Und Entwicklung Gmbh LED-Modul, LED-Leuchtmittel und LED-Leuchte für die energieeffiziente Wiedergabe von weißem Licht
KR101722265B1 (ko) 2007-10-10 2017-03-31 크리, 인코포레이티드 조명 장치 및 그 제조 방법
US9086213B2 (en) * 2007-10-17 2015-07-21 Xicato, Inc. Illumination device with light emitting diodes
US7984999B2 (en) * 2007-10-17 2011-07-26 Xicato, Inc. Illumination device with light emitting diodes and moveable light adjustment member
US8376577B2 (en) * 2007-11-05 2013-02-19 Xicato, Inc. Modular solid state lighting device
US10008637B2 (en) 2011-12-06 2018-06-26 Cree, Inc. Light emitter devices and methods with reduced dimensions and improved light output
US8436526B2 (en) 2008-02-11 2013-05-07 Sensor Electronic Technology, Inc. Multiwavelength solid-state lamps with an enhanced number of rendered colors
CN103715318A (zh) 2008-02-15 2014-04-09 克里公司 用于提供白色光输出的宽带发光器件灯
US8740400B2 (en) * 2008-03-07 2014-06-03 Intematix Corporation White light illumination system with narrow band green phosphor and multiple-wavelength excitation
US8567973B2 (en) * 2008-03-07 2013-10-29 Intematix Corporation Multiple-chip excitation systems for white light emitting diodes (LEDs)
US20090231832A1 (en) * 2008-03-15 2009-09-17 Arturas Zukauskas Solid-state lamps with complete conversion in phosphors for rendering an enhanced number of colors
US8350461B2 (en) 2008-03-28 2013-01-08 Cree, Inc. Apparatus and methods for combining light emitters
KR101562772B1 (ko) 2008-03-31 2015-10-26 서울반도체 주식회사 백열등 색의 발광 디바이스
US8847249B2 (en) 2008-06-16 2014-09-30 Soraa, Inc. Solid-state optical device having enhanced indium content in active regions
US8240875B2 (en) 2008-06-25 2012-08-14 Cree, Inc. Solid state linear array modules for general illumination
US8805134B1 (en) 2012-02-17 2014-08-12 Soraa Laser Diode, Inc. Methods and apparatus for photonic integration in non-polar and semi-polar oriented wave-guided optical devices
US8143148B1 (en) 2008-07-14 2012-03-27 Soraa, Inc. Self-aligned multi-dielectric-layer lift off process for laser diode stripes
US8767787B1 (en) 2008-07-14 2014-07-01 Soraa Laser Diode, Inc. Integrated laser diodes with quality facets on GaN substrates
JP2011530194A (ja) 2008-08-04 2011-12-15 ソラア インコーポレーテッド 物質および蛍光体を含んだ非分極性あるいは半極性のガリウムを用いた白色灯デバイス
US8284810B1 (en) 2008-08-04 2012-10-09 Soraa, Inc. Solid state laser device using a selected crystal orientation in non-polar or semi-polar GaN containing materials and methods
WO2010017523A1 (en) * 2008-08-08 2010-02-11 Xicato, Inc. Color tunable light source
US8220971B2 (en) * 2008-11-21 2012-07-17 Xicato, Inc. Light emitting diode module with three part color matching
JP2010129583A (ja) * 2008-11-25 2010-06-10 Citizen Electronics Co Ltd 照明装置
TWI462350B (zh) * 2008-12-24 2014-11-21 財團法人工業技術研究院 多晶發光二極體
US8598602B2 (en) * 2009-01-12 2013-12-03 Cree, Inc. Light emitting device packages with improved heat transfer
USD648686S1 (en) 2010-04-30 2011-11-15 Cree, Inc. Light emitting diode (LED) package
USD621799S1 (en) 2009-01-12 2010-08-17 Cree, Inc. Light emitting diode
US7923739B2 (en) 2009-06-05 2011-04-12 Cree, Inc. Solid state lighting device
USD641719S1 (en) 2009-06-05 2011-07-19 Cree, Inc. Light emitting diode
DE102009005907A1 (de) * 2009-01-23 2010-07-29 Osram Opto Semiconductors Gmbh Optoelektronisches Halbleiterbauteil
US8333631B2 (en) * 2009-02-19 2012-12-18 Cree, Inc. Methods for combining light emitting devices in a package and packages including combined light emitting devices
US7967652B2 (en) 2009-02-19 2011-06-28 Cree, Inc. Methods for combining light emitting devices in a package and packages including combined light emitting devices
US8634442B1 (en) 2009-04-13 2014-01-21 Soraa Laser Diode, Inc. Optical device structure using GaN substrates for laser applications
US9531164B2 (en) 2009-04-13 2016-12-27 Soraa Laser Diode, Inc. Optical device structure using GaN substrates for laser applications
US8837545B2 (en) 2009-04-13 2014-09-16 Soraa Laser Diode, Inc. Optical device structure using GaN substrates and growth structures for laser applications
US8957435B2 (en) * 2009-04-28 2015-02-17 Cree, Inc. Lighting device
US9800017B1 (en) 2009-05-29 2017-10-24 Soraa Laser Diode, Inc. Laser device and method for a vehicle
US8247887B1 (en) 2009-05-29 2012-08-21 Soraa, Inc. Method and surface morphology of non-polar gallium nitride containing substrates
US9250044B1 (en) 2009-05-29 2016-02-02 Soraa Laser Diode, Inc. Gallium and nitrogen containing laser diode dazzling devices and methods of use
US8509275B1 (en) 2009-05-29 2013-08-13 Soraa, Inc. Gallium nitride based laser dazzling device and method
US8921876B2 (en) 2009-06-02 2014-12-30 Cree, Inc. Lighting devices with discrete lumiphor-bearing regions within or on a surface of remote elements
US8686445B1 (en) 2009-06-05 2014-04-01 Cree, Inc. Solid state lighting devices and methods
US8860043B2 (en) * 2009-06-05 2014-10-14 Cree, Inc. Light emitting device packages, systems and methods
USD648687S1 (en) 2009-06-05 2011-11-15 Cree, Inc. Light emitting device package
US8476812B2 (en) * 2009-07-07 2013-07-02 Cree, Inc. Solid state lighting device with improved heatsink
US7932532B2 (en) * 2009-08-04 2011-04-26 Cree, Inc. Solid state lighting device with improved heatsink
US8716952B2 (en) 2009-08-04 2014-05-06 Cree, Inc. Lighting device having first, second and third groups of solid state light emitters, and lighting arrangement
JP5005013B2 (ja) * 2009-09-16 2012-08-22 三菱電機株式会社 発光装置及び照明装置
US8355418B2 (en) 2009-09-17 2013-01-15 Soraa, Inc. Growth structures and method for forming laser diodes on {20-21} or off cut gallium and nitrogen containing substrates
US8750342B1 (en) 2011-09-09 2014-06-10 Soraa Laser Diode, Inc. Laser diodes with scribe structures
US8933644B2 (en) 2009-09-18 2015-01-13 Soraa, Inc. LED lamps with improved quality of light
US9293667B2 (en) 2010-08-19 2016-03-22 Soraa, Inc. System and method for selected pump LEDs with multiple phosphors
US9293644B2 (en) 2009-09-18 2016-03-22 Soraa, Inc. Power light emitting diode and method with uniform current density operation
US8258722B2 (en) * 2009-09-24 2012-09-04 Cree, Inc. Lighting device with defined spectral power distribution
EP2491298A2 (en) * 2009-10-19 2012-08-29 Emteq Led lighting system
US7893445B2 (en) * 2009-11-09 2011-02-22 Cree, Inc. Solid state emitter package including red and blue emitters
DE102009054067A1 (de) 2009-11-20 2011-05-26 Osram Opto Semiconductors Gmbh Licht emittierende Vorrichtung
DE102010002332A1 (de) * 2009-11-30 2011-06-01 Ledon Lighting Jennersdorf Gmbh Retrofit LED-Lampe mit warmweissem, insbesondere flammenartigem Weisslicht
TWI412697B (zh) * 2009-12-09 2013-10-21 亞世達科技股份有限公司 多發光二極體光源燈件
US8905588B2 (en) 2010-02-03 2014-12-09 Sorra, Inc. System and method for providing color light sources in proximity to predetermined wavelength conversion structures
US10147850B1 (en) 2010-02-03 2018-12-04 Soraa, Inc. System and method for providing color light sources in proximity to predetermined wavelength conversion structures
US9631782B2 (en) * 2010-02-04 2017-04-25 Xicato, Inc. LED-based rectangular illumination device
US8882284B2 (en) 2010-03-03 2014-11-11 Cree, Inc. LED lamp or bulb with remote phosphor and diffuser configuration with enhanced scattering properties
US8632196B2 (en) 2010-03-03 2014-01-21 Cree, Inc. LED lamp incorporating remote phosphor and diffuser with heat dissipation features
US9625105B2 (en) * 2010-03-03 2017-04-18 Cree, Inc. LED lamp with active cooling element
US9024517B2 (en) * 2010-03-03 2015-05-05 Cree, Inc. LED lamp with remote phosphor and diffuser configuration utilizing red emitters
US8931933B2 (en) * 2010-03-03 2015-01-13 Cree, Inc. LED lamp with active cooling element
US8562161B2 (en) 2010-03-03 2013-10-22 Cree, Inc. LED based pedestal-type lighting structure
US9500325B2 (en) * 2010-03-03 2016-11-22 Cree, Inc. LED lamp incorporating remote phosphor with heat dissipation features
US10359151B2 (en) 2010-03-03 2019-07-23 Ideal Industries Lighting Llc Solid state lamp with thermal spreading elements and light directing optics
US9057511B2 (en) 2010-03-03 2015-06-16 Cree, Inc. High efficiency solid state lamp and bulb
US9275979B2 (en) * 2010-03-03 2016-03-01 Cree, Inc. Enhanced color rendering index emitter through phosphor separation
US9310030B2 (en) * 2010-03-03 2016-04-12 Cree, Inc. Non-uniform diffuser to scatter light into uniform emission pattern
US9062830B2 (en) * 2010-03-03 2015-06-23 Cree, Inc. High efficiency solid state lamp and bulb
US8104908B2 (en) 2010-03-04 2012-01-31 Xicato, Inc. Efficient LED-based illumination module with high color rendering index
US8508127B2 (en) * 2010-03-09 2013-08-13 Cree, Inc. High CRI lighting device with added long-wavelength blue color
US8820950B2 (en) 2010-03-12 2014-09-02 Toshiba Lighting & Technology Corporation Light emitting device and illumination apparatus
WO2011115515A1 (ru) 2010-03-16 2011-09-22 Общество с ограниченной ответственностью "ДиС ПЛЮС" Способ управления цветностью светового потока белого светодиода и устройство для его осуществления способа
WO2011125885A1 (ja) * 2010-03-31 2011-10-13 インテックス株式会社 光源装置
WO2011139538A2 (en) 2010-04-26 2011-11-10 Xicato, Inc. Led-based illumination module attachment to a light fixture
US8517562B2 (en) * 2010-05-04 2013-08-27 Xicato, Inc. Flexible electrical connection of an LED-based illumination device to a light fixture
US8451876B1 (en) 2010-05-17 2013-05-28 Soraa, Inc. Method and system for providing bidirectional light sources with broad spectrum
US8684559B2 (en) 2010-06-04 2014-04-01 Cree, Inc. Solid state light source emitting warm light with high CRI
US8575836B2 (en) 2010-06-08 2013-11-05 Cree, Inc. Lighting devices with differential light transmission regions
US8405324B2 (en) 2010-06-18 2013-03-26 General Electric Company Hospital lighting with solid state emitters
KR20160124928A (ko) 2010-06-18 2016-10-28 시카토, 인코포레이티드. 온-보드 진단을 수행하는 led 기반 조명 모듈
US8269244B2 (en) 2010-06-28 2012-09-18 Cree, Inc. LED package with efficient, isolated thermal path
US8648359B2 (en) 2010-06-28 2014-02-11 Cree, Inc. Light emitting devices and methods
USD643819S1 (en) 2010-07-16 2011-08-23 Cree, Inc. Package for light emitting diode (LED) lighting
CN101958316B (zh) * 2010-07-20 2013-01-16 上海亚明灯泡厂有限公司 Led集成封装光源模块
US10451251B2 (en) 2010-08-02 2019-10-22 Ideal Industries Lighting, LLC Solid state lamp with light directing optics and diffuser
JP2010258479A (ja) * 2010-08-16 2010-11-11 Citizen Electronics Co Ltd 発光装置
US20120051045A1 (en) 2010-08-27 2012-03-01 Xicato, Inc. Led Based Illumination Module Color Matched To An Arbitrary Light Source
US8198109B2 (en) 2010-08-27 2012-06-12 Quarkstar Llc Manufacturing methods for solid state light sheet or strip with LEDs connected in series for general illumination
US8297767B2 (en) 2010-09-07 2012-10-30 Xicato, Inc. LED-based illumination modules with PTFE color converting surfaces
US9140429B2 (en) 2010-10-14 2015-09-22 Cree, Inc. Optical element edge treatment for lighting device
US8192051B2 (en) 2010-11-01 2012-06-05 Quarkstar Llc Bidirectional LED light sheet
US8816319B1 (en) 2010-11-05 2014-08-26 Soraa Laser Diode, Inc. Method of strain engineering and related optical device using a gallium and nitrogen containing active region
US8491140B2 (en) 2010-11-05 2013-07-23 Cree, Inc. Lighting device with multiple emitters and remote lumiphor
US9648673B2 (en) 2010-11-05 2017-05-09 Cree, Inc. Lighting device with spatially segregated primary and secondary emitters
US9048170B2 (en) 2010-11-09 2015-06-02 Soraa Laser Diode, Inc. Method of fabricating optical devices using laser treatment
JP5450559B2 (ja) 2010-11-25 2014-03-26 シャープ株式会社 植物栽培用ｌｅｄ光源、植物工場及び発光装置
US8610140B2 (en) 2010-12-15 2013-12-17 Cree, Inc. Light emitting diode (LED) packages, systems, devices and related methods
USD679842S1 (en) 2011-01-03 2013-04-09 Cree, Inc. High brightness LED package
US8425065B2 (en) 2010-12-30 2013-04-23 Xicato, Inc. LED-based illumination modules with thin color converting layers
TW201227920A (en) 2010-12-31 2012-07-01 Siliconware Precision Industries Co Ltd LED package substrate and fabrication method thereof
US20120186627A1 (en) * 2011-01-20 2012-07-26 Colossus EPC, Inc. Electronic power source
US9647162B2 (en) 2011-01-20 2017-05-09 Colossus EPC Inc. Electronic power cell memory back-up battery
US9025635B2 (en) 2011-01-24 2015-05-05 Soraa Laser Diode, Inc. Laser package having multiple emitters configured on a support member
US9595813B2 (en) 2011-01-24 2017-03-14 Soraa Laser Diode, Inc. Laser package having multiple emitters configured on a substrate member
US20120187763A1 (en) * 2011-01-25 2012-07-26 Isoline Component Company, Llc Electronic power supply
US9093820B1 (en) 2011-01-25 2015-07-28 Soraa Laser Diode, Inc. Method and structure for laser devices using optical blocking regions
TW201251140A (en) 2011-01-31 2012-12-16 Cree Inc High brightness light emitting diode (LED) packages, systems and methods with improved resin filling and high adhesion
US9068701B2 (en) 2012-01-26 2015-06-30 Cree, Inc. Lamp structure with remote LED light source
CN103348496A (zh) 2011-02-07 2013-10-09 克利公司 用于发光二极管（led）发光的部件和方法
US9234655B2 (en) 2011-02-07 2016-01-12 Cree, Inc. Lamp with remote LED light source and heat dissipating elements
CN103459915B (zh) * 2011-02-09 2016-06-01 株式会社东芝 白光源以及包括所述白光源的白光源系统
US10098197B2 (en) 2011-06-03 2018-10-09 Cree, Inc. Lighting devices with individually compensating multi-color clusters
US11251164B2 (en) 2011-02-16 2022-02-15 Creeled, Inc. Multi-layer conversion material for down conversion in solid state lighting
US8314566B2 (en) 2011-02-22 2012-11-20 Quarkstar Llc Solid state lamp using light emitting strips
US8410726B2 (en) 2011-02-22 2013-04-02 Quarkstar Llc Solid state lamp using modular light emitting elements
DE102011013504B4 (de) * 2011-03-10 2022-03-17 OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung Licht emittierende Vorrichtung
US8899767B2 (en) 2011-03-31 2014-12-02 Xicato, Inc. Grid structure on a transmissive layer of an LED-based illumination module
US9287684B2 (en) 2011-04-04 2016-03-15 Soraa Laser Diode, Inc. Laser package having multiple emitters with color wheel
CN103636010A (zh) 2011-04-11 2014-03-12 克利公司 包括绿移红色组件的固态照明设备
US8921875B2 (en) 2011-05-10 2014-12-30 Cree, Inc. Recipient luminophoric mediums having narrow spectrum luminescent materials and related semiconductor light emitting devices and methods
JP5105132B1 (ja) 2011-06-02 2012-12-19 三菱化学株式会社 半導体発光装置、半導体発光システムおよび照明器具
US8906263B2 (en) 2011-06-03 2014-12-09 Cree, Inc. Red nitride phosphors
US8814621B2 (en) 2011-06-03 2014-08-26 Cree, Inc. Methods of determining and making red nitride compositions
US8729790B2 (en) 2011-06-03 2014-05-20 Cree, Inc. Coated phosphors and light emitting devices including the same
US8747697B2 (en) 2011-06-07 2014-06-10 Cree, Inc. Gallium-substituted yttrium aluminum garnet phosphor and light emitting devices including the same
US8684569B2 (en) 2011-07-06 2014-04-01 Cree, Inc. Lens and trim attachment structure for solid state downlights
US10686107B2 (en) 2011-07-21 2020-06-16 Cree, Inc. Light emitter devices and components with improved chemical resistance and related methods
JP2014525146A (ja) 2011-07-21 2014-09-25 クリー インコーポレイテッド 発光デバイス、パッケージ、部品、ならびに改良された化学抵抗性のための方法および関連する方法
US10211380B2 (en) 2011-07-21 2019-02-19 Cree, Inc. Light emitting devices and components having improved chemical resistance and related methods
CN102903829B (zh) * 2011-07-26 2015-01-07 展晶科技(深圳)有限公司 发光二极管光源装置
US8403529B2 (en) 2011-08-02 2013-03-26 Xicato, Inc. LED-based illumination module with preferentially illuminated color converting surfaces
US8449129B2 (en) 2011-08-02 2013-05-28 Xicato, Inc. LED-based illumination device with color converting surfaces
US9488324B2 (en) 2011-09-02 2016-11-08 Soraa, Inc. Accessories for LED lamp systems
US8485692B2 (en) 2011-09-09 2013-07-16 Xicato, Inc. LED-based light source with sharply defined field angle
US8971370B1 (en) 2011-10-13 2015-03-03 Soraa Laser Diode, Inc. Laser devices using a semipolar plane
CN102354693B (zh) * 2011-10-25 2013-07-31 佛山市国星光电股份有限公司 一种含有多个反射杯的面光源封装结构
TWI508332B (zh) 2011-11-09 2015-11-11 友達光電股份有限公司 發光光源及其顯示面板
US8884508B2 (en) 2011-11-09 2014-11-11 Cree, Inc. Solid state lighting device including multiple wavelength conversion materials
CN106931333B (zh) 2011-11-23 2020-11-27 夸克星有限责任公司 发光装置
US9217560B2 (en) 2011-12-05 2015-12-22 Xicato, Inc. Reflector attachment to an LED-based illumination module
CN102410460A (zh) * 2011-12-05 2012-04-11 深圳市启明和丰照明科技有限公司 一种能自由调节色温的led灯及其色温自由调节方法
US9496466B2 (en) 2011-12-06 2016-11-15 Cree, Inc. Light emitter devices and methods, utilizing light emitting diodes (LEDs), for improved light extraction
GB2497950A (en) * 2011-12-22 2013-07-03 Sharp Kk Laser and Phosphor Based Light Source for Improved Safety
US9482421B2 (en) * 2011-12-30 2016-11-01 Cree, Inc. Lamp with LED array and thermal coupling medium
US9318669B2 (en) 2012-01-30 2016-04-19 Cree, Inc. Methods of determining and making red nitride compositions
US8820951B2 (en) 2012-02-06 2014-09-02 Xicato, Inc. LED-based light source with hybrid spot and general lighting characteristics
US9343441B2 (en) 2012-02-13 2016-05-17 Cree, Inc. Light emitter devices having improved light output and related methods
US9240530B2 (en) 2012-02-13 2016-01-19 Cree, Inc. Light emitter devices having improved chemical and physical resistance and related methods
US8779687B2 (en) 2012-02-13 2014-07-15 Xicato, Inc. Current routing to multiple LED circuits
KR20130094482A (ko) * 2012-02-16 2013-08-26 서울반도체 주식회사 렌즈를 갖는 발광 모듈
US9020003B1 (en) 2012-03-14 2015-04-28 Soraa Laser Diode, Inc. Group III-nitride laser diode grown on a semi-polar orientation of gallium and nitrogen containing substrates
US9488359B2 (en) 2012-03-26 2016-11-08 Cree, Inc. Passive phase change radiators for LED lamps and fixtures
JP2013205661A (ja) * 2012-03-29 2013-10-07 Nichia Chem Ind Ltd 表示装置及びこれを用いた表示方法
US9735198B2 (en) 2012-03-30 2017-08-15 Cree, Inc. Substrate based light emitter devices, components, and related methods
US9343871B1 (en) 2012-04-05 2016-05-17 Soraa Laser Diode, Inc. Facet on a gallium and nitrogen containing laser diode
US10559939B1 (en) 2012-04-05 2020-02-11 Soraa Laser Diode, Inc. Facet on a gallium and nitrogen containing laser diode
US9800016B1 (en) 2012-04-05 2017-10-24 Soraa Laser Diode, Inc. Facet on a gallium and nitrogen containing laser diode
CN102623625A (zh) * 2012-04-06 2012-08-01 浙江中宙光电股份有限公司 新型led器件
WO2013164737A1 (en) * 2012-04-30 2013-11-07 Koninklijke Philips N.V. Pixelated single phosphor leds for white light generation
US8680785B2 (en) 2012-05-18 2014-03-25 Xicato, Inc. Variable master current mirror
US9099843B1 (en) 2012-07-19 2015-08-04 Soraa Laser Diode, Inc. High operating temperature laser diodes
US8971368B1 (en) 2012-08-16 2015-03-03 Soraa Laser Diode, Inc. Laser devices having a gallium and nitrogen containing semipolar surface orientation
DE102012214828A1 (de) * 2012-08-21 2014-03-13 Osram Opto Semiconductors Gmbh ANORDNUNG ZUR ERZEUGUNG VON WEIßEM LICHT
US20140003044A1 (en) 2012-09-06 2014-01-02 Xicato, Inc. Integrated led based illumination device
EP2895793B1 (en) 2012-09-13 2020-11-04 Quarkstar LLC Light-emitting devices with reflective elements
EP2896079B1 (en) 2012-09-13 2018-02-28 Quarkstar LLC Light-emitting device with remote scattering element and total internal reflection extractor element
US9353917B2 (en) 2012-09-14 2016-05-31 Cree, Inc. High efficiency lighting device including one or more solid state light emitters, and method of lighting
US8740411B2 (en) 2012-10-01 2014-06-03 Avago Technologies General Ip (Singapore) Pte. Ltd. Plastic leaded chip carrier with diagonally oriented light sources for fine-pitched display
US8845380B2 (en) 2012-12-17 2014-09-30 Xicato, Inc. Automated color tuning of an LED based illumination device
US20140168963A1 (en) * 2012-12-18 2014-06-19 Musco Corporation Multi-led lens with light pattern optimization
US9761763B2 (en) 2012-12-21 2017-09-12 Soraa, Inc. Dense-luminescent-materials-coated violet LEDs
US9474116B2 (en) 2013-01-03 2016-10-18 Avago Technologies General Ip (Singapore) Pte. Ltd. Minimized color shift lighting arrangement during dimming
US8870617B2 (en) 2013-01-03 2014-10-28 Xicato, Inc. Color tuning of a multi-color LED based illumination device
US9570661B2 (en) 2013-01-10 2017-02-14 Cree, Inc. Protective coating for LED lamp
US9316382B2 (en) 2013-01-31 2016-04-19 Cree, Inc. Connector devices, systems, and related methods for connecting light emitting diode (LED) modules
US9030103B2 (en) 2013-02-08 2015-05-12 Cree, Inc. Solid state light emitting devices including adjustable scotopic / photopic ratio
US9039746B2 (en) 2013-02-08 2015-05-26 Cree, Inc. Solid state light emitting devices including adjustable melatonin suppression effects
US9565782B2 (en) 2013-02-15 2017-02-07 Ecosense Lighting Inc. Field replaceable power supply cartridge
US10142018B2 (en) * 2013-03-06 2018-11-27 Cree, Inc. Visible light communication via solid state lighting devices
US9752757B2 (en) 2013-03-07 2017-09-05 Quarkstar Llc Light-emitting device with light guide for two way illumination
US9683710B2 (en) 2013-03-07 2017-06-20 Quarkstar Llc Illumination device with multi-color light-emitting elements
US8770800B1 (en) 2013-03-15 2014-07-08 Xicato, Inc. LED-based light source reflector with shell elements
US9587790B2 (en) 2013-03-15 2017-03-07 Cree, Inc. Remote lumiphor solid state lighting devices with enhanced light extraction
US10811576B2 (en) 2013-03-15 2020-10-20 Quarkstar Llc Color tuning of light-emitting devices
US9657922B2 (en) * 2013-03-15 2017-05-23 Cree, Inc. Electrically insulative coatings for LED lamp and elements
US9591726B2 (en) 2013-07-02 2017-03-07 Xicato, Inc. LED-based lighting control network communication
US9596737B2 (en) 2013-07-02 2017-03-14 Xicato, Inc. Multi-port LED-based lighting communications gateway
US9099575B2 (en) 2013-07-16 2015-08-04 Cree, Inc. Solid state lighting devices and fabrication methods including deposited light-affecting elements
TWI527166B (zh) * 2013-07-25 2016-03-21 菱生精密工業股份有限公司 The package structure of the optical module
TW201508223A (zh) * 2013-08-20 2015-03-01 隆達電子股份有限公司 發光裝置
KR102108204B1 (ko) 2013-08-26 2020-05-08 서울반도체 주식회사 면 조명용 렌즈 및 발광 모듈
US9410664B2 (en) 2013-08-29 2016-08-09 Soraa, Inc. Circadian friendly LED light source
EP3047203A2 (en) 2013-09-17 2016-07-27 Xicato, Inc. Led based illumination device with integrated output window
US9240528B2 (en) 2013-10-03 2016-01-19 Cree, Inc. Solid state lighting apparatus with high scotopic/photopic (S/P) ratio
US9989216B2 (en) * 2013-11-21 2018-06-05 Ford Global Technologies, Llc Interior exterior moving designs
US9425896B2 (en) 2013-12-31 2016-08-23 Xicato, Inc. Color modulated LED-based illumination
US9360188B2 (en) 2014-02-20 2016-06-07 Cree, Inc. Remote phosphor element filled with transparent material and method for forming multisection optical elements
US9788379B2 (en) 2014-03-28 2017-10-10 Xicato, Inc. Deep dimming of an LED-based illumination device
JP6426906B2 (ja) * 2014-03-31 2018-11-21 積水化学工業株式会社 合わせガラス用中間膜、合わせガラス、及び、ディスプレイ装置
US9241384B2 (en) 2014-04-23 2016-01-19 Cree, Inc. Solid state lighting devices with adjustable color point
US9593812B2 (en) 2014-04-23 2017-03-14 Cree, Inc. High CRI solid state lighting devices with enhanced vividness
US9781799B2 (en) 2014-05-05 2017-10-03 Xicato, Inc. LED-based illumination device reflector having sense and communication capability
US9215761B2 (en) 2014-05-15 2015-12-15 Cree, Inc. Solid state lighting devices with color point non-coincident with blackbody locus
US9192013B1 (en) 2014-06-06 2015-11-17 Cree, Inc. Lighting devices with variable gamut
US9534741B2 (en) 2014-07-23 2017-01-03 Cree, Inc. Lighting devices with illumination regions having different gamut properties
DE102015111652A1 (de) * 2014-08-06 2016-02-11 Ford Global Technologies, Llc Bewegliche innenraum-aussenraum-gestaltung
US9799804B2 (en) 2014-10-28 2017-10-24 Matrix Lighting Ltd. Light-emitting device with near full spectrum light output
US10477636B1 (en) 2014-10-28 2019-11-12 Ecosense Lighting Inc. Lighting systems having multiple light sources
US10431568B2 (en) 2014-12-18 2019-10-01 Cree, Inc. Light emitting diodes, components and related methods
US9702524B2 (en) 2015-01-27 2017-07-11 Cree, Inc. High color-saturation lighting devices
US9869450B2 (en) 2015-02-09 2018-01-16 Ecosense Lighting Inc. Lighting systems having a truncated parabolic- or hyperbolic-conical light reflector, or a total internal reflection lens; and having another light reflector
US11306897B2 (en) 2015-02-09 2022-04-19 Ecosense Lighting Inc. Lighting systems generating partially-collimated light emissions
US9960848B2 (en) 2015-02-27 2018-05-01 Xicato, Inc. Commissioning of devices on a lighting communications network
US9930741B2 (en) 2015-02-27 2018-03-27 Xicato, Inc. Synchronized light control over a wireless network
US9853730B2 (en) 2015-02-27 2017-12-26 Xicato, Inc. Lighting based authentication of a mobile electronic device
US9788397B2 (en) 2015-02-27 2017-10-10 Xicato, Inc. Lighting communication advertising packets
US9746159B1 (en) 2015-03-03 2017-08-29 Ecosense Lighting Inc. Lighting system having a sealing system
US9651216B2 (en) 2015-03-03 2017-05-16 Ecosense Lighting Inc. Lighting systems including asymmetric lens modules for selectable light distribution
US9651227B2 (en) 2015-03-03 2017-05-16 Ecosense Lighting Inc. Low-profile lighting system having pivotable lighting enclosure
US9568665B2 (en) 2015-03-03 2017-02-14 Ecosense Lighting Inc. Lighting systems including lens modules for selectable light distribution
US9681510B2 (en) 2015-03-26 2017-06-13 Cree, Inc. Lighting device with operation responsive to geospatial position
US12364074B2 (en) 2015-03-31 2025-07-15 Creeled, Inc. Light emitting diodes and methods
CN113130725B (zh) 2015-03-31 2024-09-24 科锐Led公司 具有包封的发光二极管和方法
US9781798B2 (en) 2015-04-08 2017-10-03 Xicato, Inc. LED-based illumination systems having sense and communication capability
WO2016176625A1 (en) 2015-04-30 2016-11-03 Cree, Inc. Solid state lighting components
US9943042B2 (en) 2015-05-18 2018-04-17 Biological Innovation & Optimization Systems, LLC Grow light embodying power delivery and data communications features
US10009980B2 (en) 2015-05-18 2018-06-26 Xicato, Inc. Lighting communications gateway
US9900957B2 (en) 2015-06-11 2018-02-20 Cree, Inc. Lighting device including solid state emitters with adjustable control
CN106322225B (zh) * 2015-06-16 2019-05-10 群创光电股份有限公司 显示装置的背光源
USD785218S1 (en) 2015-07-06 2017-04-25 Ecosense Lighting Inc. LED luminaire having a mounting system
US10074635B2 (en) 2015-07-17 2018-09-11 Cree, Inc. Solid state light emitter devices and methods
USD782094S1 (en) 2015-07-20 2017-03-21 Ecosense Lighting Inc. LED luminaire having a mounting system
USD782093S1 (en) 2015-07-20 2017-03-21 Ecosense Lighting Inc. LED luminaire having a mounting system
US9651232B1 (en) 2015-08-03 2017-05-16 Ecosense Lighting Inc. Lighting system having a mounting device
US11901492B2 (en) 2015-09-10 2024-02-13 Intematix Corporation High color rendering white light emitting devices and high color rendering photoluminescence compositions
CN108352432B (zh) * 2015-09-10 2021-09-14 英特曼帝克司公司 用于一般照明及显示器背光的磷光体转换白光发光装置和光致发光化合物
US9844116B2 (en) 2015-09-15 2017-12-12 Biological Innovation & Optimization Systems, LLC Systems and methods for controlling the spectral content of LED lighting devices
US9788387B2 (en) 2015-09-15 2017-10-10 Biological Innovation & Optimization Systems, LLC Systems and methods for controlling the spectral content of LED lighting devices
US9750092B2 (en) 2015-10-01 2017-08-29 Xicato, Inc. Power management of an LED-based illumination device
KR102486032B1 (ko) 2015-11-04 2023-01-11 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 발광 소자 및 이를 구비한 조명 장치
CN108290050B (zh) 2015-11-10 2020-05-19 飞利浦照明控股有限公司 具有可变uv分量的可调白光源
WO2017131697A1 (en) 2016-01-28 2017-08-03 Ecosense Lighting Inc Systems for providing tunable white light with high color rendering
WO2017131699A1 (en) 2016-01-28 2017-08-03 Ecosense Lighting Inc Systems for providing tunable white light with high color rendering
US10512133B2 (en) 2016-01-28 2019-12-17 Ecosense Lighting Inc. Methods of providing tunable warm white light
US10492264B2 (en) 2016-01-28 2019-11-26 EcoSense Lighting, Inc. Lighting systems for providing tunable white light with functional diode emissions
WO2017131706A1 (en) 2016-01-28 2017-08-03 Ecosense Lighting Inc Methods for generating tunable white light with high color rendering
US10337917B2 (en) 2016-03-31 2019-07-02 Sensor Electronic Technology, Inc. Adjustable multi-wavelength lamp
US10290777B2 (en) 2016-07-26 2019-05-14 Cree, Inc. Light emitting diodes, components and related methods
CN106067508A (zh) * 2016-08-03 2016-11-02 江西亚中电子科技有限公司 多用途双色led贴片支架
US10595376B2 (en) 2016-09-13 2020-03-17 Biological Innovation & Optimization Systems, LLC Systems and methods for controlling the spectral content of LED lighting devices
WO2018052902A1 (en) 2016-09-13 2018-03-22 Cree, Inc. Light emitting diodes, components and related methods
US10804251B2 (en) 2016-11-22 2020-10-13 Cree, Inc. Light emitting diode (LED) devices, components and methods
US10465869B2 (en) 2017-01-30 2019-11-05 Ideal Industries Lighting Llc Skylight fixture
US10451229B2 (en) 2017-01-30 2019-10-22 Ideal Industries Lighting Llc Skylight fixture
US10439114B2 (en) 2017-03-08 2019-10-08 Cree, Inc. Substrates for light emitting diodes and related methods
US11061180B2 (en) * 2017-04-03 2021-07-13 Intematix Corporation Color liquid crystal displays and display backlights
US10260683B2 (en) 2017-05-10 2019-04-16 Cree, Inc. Solid-state lamp with LED filaments having different CCT's
US10410997B2 (en) 2017-05-11 2019-09-10 Cree, Inc. Tunable integrated optics LED components and methods
RU2693632C1 (ru) * 2019-01-18 2019-07-03 Общество с ограниченной ответственностью «Научно-технический центр «Биолюмен» (ООО «НТЦ «Биолюмен») Светодиодный источник белого света с биологически адекватным спектром излучения
US10672957B2 (en) 2017-07-19 2020-06-02 Cree, Inc. LED apparatuses and methods for high lumen output density
US11107857B2 (en) 2017-08-18 2021-08-31 Creeled, Inc. Light emitting diodes, components and related methods
US11101248B2 (en) 2017-08-18 2021-08-24 Creeled, Inc. Light emitting diodes, components and related methods
CN107546312A (zh) * 2017-08-24 2018-01-05 欧普照明股份有限公司 一种光源模组及包括该光源模组的照明装置
US10361349B2 (en) 2017-09-01 2019-07-23 Cree, Inc. Light emitting diodes, components and related methods
US10541353B2 (en) 2017-11-10 2020-01-21 Cree, Inc. Light emitting devices including narrowband converters for outdoor lighting applications
US10734560B2 (en) 2017-11-29 2020-08-04 Cree, Inc. Configurable circuit layout for LEDs
WO2019139637A1 (en) 2018-01-11 2019-07-18 Ecosense Lighting Inc. Multi-channel systems for providing tunable light with high color rendering and biological effects
US10573543B2 (en) 2018-04-30 2020-02-25 Cree, Inc. Apparatus and methods for mass transfer of electronic die
US11121298B2 (en) 2018-05-25 2021-09-14 Creeled, Inc. Light-emitting diode packages with individually controllable light-emitting diode chips
US10453827B1 (en) 2018-05-30 2019-10-22 Cree, Inc. LED apparatuses and methods
US11101410B2 (en) 2018-05-30 2021-08-24 Creeled, Inc. LED systems, apparatuses, and methods
EP3776674B1 (en) 2018-06-04 2024-07-31 CreeLED, Inc. Led apparatuses, and method
US10964866B2 (en) 2018-08-21 2021-03-30 Cree, Inc. LED device, system, and method with adaptive patterns
US11335833B2 (en) 2018-08-31 2022-05-17 Creeled, Inc. Light-emitting diodes, light-emitting diode arrays and related devices
US11233183B2 (en) 2018-08-31 2022-01-25 Creeled, Inc. Light-emitting diodes, light-emitting diode arrays and related devices
US11239637B2 (en) 2018-12-21 2022-02-01 Kyocera Sld Laser, Inc. Fiber delivered laser induced white light system
US11421843B2 (en) 2018-12-21 2022-08-23 Kyocera Sld Laser, Inc. Fiber-delivered laser-induced dynamic light system
US12152742B2 (en) 2019-01-18 2024-11-26 Kyocera Sld Laser, Inc. Laser-based light guide-coupled wide-spectrum light system
US20220090760A1 (en) * 2019-01-18 2022-03-24 Research And Development Center “Biolumen” Limited Liability Company Led white light source with a biologically adequate emission spectrum
US12000552B2 (en) 2019-01-18 2024-06-04 Kyocera Sld Laser, Inc. Laser-based fiber-coupled white light system for a vehicle
US11884202B2 (en) 2019-01-18 2024-01-30 Kyocera Sld Laser, Inc. Laser-based fiber-coupled white light system
FI130142B (en) 2019-02-26 2023-03-10 Turun Yliopisto Lighting device
US11101411B2 (en) 2019-06-26 2021-08-24 Creeled, Inc. Solid-state light emitting devices including light emitting diodes in package structures
EP4168709B1 (en) * 2020-06-18 2025-08-06 Signify Holding B.V. Filament lamp with improved visibility
RU2765922C1 (ru) * 2021-05-04 2022-02-04 Константин Павлович Горбенко Способ снижения вредного воздействия на человека излучения полноспектрального светодиодного светильника
US20250003575A1 (en) 2023-06-30 2025-01-02 Korrus, Inc. Lighting devices, light distribution-modifying elements, and methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3875456A (en) 1972-04-04 1975-04-01 Hitachi Ltd Multi-color semiconductor lamp
US6513949B1 (en) 1999-12-02 2003-02-04 Koninklijke Philips Electronics N.V. LED/phosphor-LED hybrid lighting systems
US20030070681A1 (en) 2001-10-04 2003-04-17 Siemens Elema Ab Dosing system
US20040217364A1 (en) 2003-05-01 2004-11-04 Cree Lighting Company, Inc. Multiple component solid state white light

Family Cites Families (236)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3805937A (en) 1970-12-29 1974-04-23 Glory Kogyo Kk Automatic money dispensing machine
US3927290A (en) 1974-11-14 1975-12-16 Teletype Corp Selectively illuminated pushbutton switch
JPS5225484A (en) 1975-08-21 1977-02-25 Mitsubishi Electric Corp Mixing light illuminating method
US4325146A (en) 1979-12-20 1982-04-13 Lennington John W Non-synchronous object identification system
US4408157A (en) 1981-05-04 1983-10-04 Associated Research, Inc. Resistance measuring arrangement
US4420398A (en) 1981-08-13 1983-12-13 American National Red Cross Filteration method for cell produced antiviral substances
US4710699A (en) 1983-10-14 1987-12-01 Omron Tateisi Electronics Co. Electronic switching device
US5407799A (en) 1989-09-14 1995-04-18 Associated Universities, Inc. Method for high-volume sequencing of nucleic acids: random and directed priming with libraries of oligonucleotides
US5087883A (en) 1990-09-10 1992-02-11 Mr. Coffee, Inc. Differential conductivity meter for fluids and products containing such meters
US5264997A (en) 1992-03-04 1993-11-23 Dominion Automotive Industries Corp. Sealed, inductively powered lamp assembly
DE4228895C2 (de) 1992-08-29 2002-09-19 Bosch Gmbh Robert Kraftfahrzeug-Beleuchtungseinrichtung mit mehreren Halbleiterlichtquellen
US5410519A (en) 1993-11-19 1995-04-25 Coastal & Offshore Pacific Corporation Acoustic tracking system
US6600175B1 (en) 1996-03-26 2003-07-29 Advanced Technology Materials, Inc. Solid state white light emitter and display using same
US5957564A (en) 1996-03-26 1999-09-28 Dana G. Bruce Low power lighting display
US6550949B1 (en) 1996-06-13 2003-04-22 Gentex Corporation Systems and components for enhancing rear vision from a vehicle
US5803579A (en) 1996-06-13 1998-09-08 Gentex Corporation Illuminator assembly incorporating light emitting diodes
DE19638667C2 (de) 1996-09-20 2001-05-17 Osram Opto Semiconductors Gmbh Mischfarbiges Licht abstrahlendes Halbleiterbauelement mit Lumineszenzkonversionselement
DE29724582U1 (de) 1996-06-26 2002-07-04 OSRAM Opto Semiconductors GmbH & Co. oHG, 93049 Regensburg Lichtabstrahlendes Halbleiterbauelement mit Lumineszenzkonversionselement
TW383508B (en) 1996-07-29 2000-03-01 Nichia Kagaku Kogyo Kk Light emitting device and display
US5851063A (en) 1996-10-28 1998-12-22 General Electric Company Light-emitting diode white light source
JPH10163535A (ja) 1996-11-27 1998-06-19 Kasei Optonix Co Ltd 白色発光素子
WO1998039805A1 (de) 1997-03-03 1998-09-11 Koninklijke Philips Electronics N.V. Weisse lumineszenzdiode
US6784463B2 (en) 1997-06-03 2004-08-31 Lumileds Lighting U.S., Llc III-Phospide and III-Arsenide flip chip light-emitting devices
US6319425B1 (en) 1997-07-07 2001-11-20 Asahi Rubber Inc. Transparent coating member for light-emitting diodes and a fluorescent color light source
US6016038A (en) 1997-08-26 2000-01-18 Color Kinetics, Inc. Multicolored LED lighting method and apparatus
US7014336B1 (en) 1999-11-18 2006-03-21 Color Kinetics Incorporated Systems and methods for generating and modulating illumination conditions
US6292901B1 (en) 1997-08-26 2001-09-18 Color Kinetics Incorporated Power/data protocol
GB2329238A (en) 1997-09-12 1999-03-17 Hassan Paddy Abdel Salam LED light source
JPH11163397A (ja) * 1997-11-25 1999-06-18 Matsushita Electric Works Ltd Ｌｅｄ素子及びその製造方法
US6480299B1 (en) 1997-11-25 2002-11-12 University Technology Corporation Color printer characterization using optimization theory and neural networks
US6294800B1 (en) 1998-02-06 2001-09-25 General Electric Company Phosphors for white light generation from UV emitting diodes
US6252254B1 (en) 1998-02-06 2001-06-26 General Electric Company Light emitting device with phosphor composition
US6278135B1 (en) 1998-02-06 2001-08-21 General Electric Company Green-light emitting phosphors and light sources using the same
US6255670B1 (en) 1998-02-06 2001-07-03 General Electric Company Phosphors for light generation from light emitting semiconductors
JP4174858B2 (ja) * 1998-07-06 2008-11-05 日亜化学工業株式会社 発光ダイオード
JP4109756B2 (ja) 1998-07-07 2008-07-02 スタンレー電気株式会社 発光ダイオード
TW406442B (en) 1998-07-09 2000-09-21 Sumitomo Electric Industries White colored LED and intermediate colored LED
US5959316A (en) 1998-09-01 1999-09-28 Hewlett-Packard Company Multiple encapsulation of phosphor-LED devices
JP4366016B2 (ja) 1998-09-28 2009-11-18 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 照明装置
US6429583B1 (en) 1998-11-30 2002-08-06 General Electric Company Light emitting device with ba2mgsi2o7:eu2+, ba2sio4:eu2+, or (srxcay ba1-x-y)(a1zga1-z)2sr:eu2+phosphors
US6149283A (en) 1998-12-09 2000-11-21 Rensselaer Polytechnic Institute (Rpi) LED lamp with reflector and multicolor adjuster
JP3310955B2 (ja) * 1999-01-05 2002-08-05 日亜化学工業株式会社 発光ダイオード及びその製造方法、並びにそれを用いた表示装置
US6212213B1 (en) 1999-01-29 2001-04-03 Agilent Technologies, Inc. Projector light source utilizing a solid state green light source
CN1206746C (zh) 1999-02-05 2005-06-15 株式会社日矿材料 光电变换功能元件及其制造方法
WO2000079605A1 (fr) 1999-06-23 2000-12-28 Citizen Electronics Co., Ltd. Diode électroluminescente
US6335538B1 (en) 1999-07-23 2002-01-01 Impulse Dynamics N.V. Electro-optically driven solid state relay system
US6504301B1 (en) 1999-09-03 2003-01-07 Lumileds Lighting, U.S., Llc Non-incandescent lightbulb package using light emitting diodes
US6686691B1 (en) 1999-09-27 2004-02-03 Lumileds Lighting, U.S., Llc Tri-color, white light LED lamps
US6712486B1 (en) 1999-10-19 2004-03-30 Permlight Products, Inc. Mounting arrangement for light emitting diodes
JP4422832B2 (ja) 1999-11-05 2010-02-24 アビックス株式会社 Ｌｅｄ電灯
US6597179B2 (en) 1999-11-19 2003-07-22 Gelcore, Llc Method and device for remote monitoring of LED lamps
US6762563B2 (en) 1999-11-19 2004-07-13 Gelcore Llc Module for powering and monitoring light-emitting diodes
US6357889B1 (en) 1999-12-01 2002-03-19 General Electric Company Color tunable light source
US6350041B1 (en) 1999-12-03 2002-02-26 Cree Lighting Company High output radial dispersing lamp using a solid state light source
TW480744B (en) 2000-03-14 2002-03-21 Lumileds Lighting Bv Light-emitting diode, lighting device and method of manufacturing same
EP1134300A3 (en) 2000-03-17 2002-05-22 Hitachi Metals, Ltd. Fe-Ni alloy
US6538371B1 (en) 2000-03-27 2003-03-25 The General Electric Company White light illumination system with improved color output
US6522065B1 (en) 2000-03-27 2003-02-18 General Electric Company Single phosphor for creating white light with high luminosity and high CRI in a UV led device
US6394621B1 (en) 2000-03-30 2002-05-28 Hanewinkel, Iii William Henry Latching switch for compact flashlight providing an easy means for changing the power source
GB2361354B (en) 2000-04-13 2004-06-30 Arima Optoelectronics Corp White light emitting diode with single asymmetric quantum well in active layer
JP2001307506A (ja) 2000-04-17 2001-11-02 Hitachi Ltd 白色発光装置および照明器具
US6603258B1 (en) 2000-04-24 2003-08-05 Lumileds Lighting, U.S. Llc Light emitting diode device that emits white light
US6501100B1 (en) 2000-05-15 2002-12-31 General Electric Company White light emitting phosphor blend for LED devices
CN1203557C (zh) 2000-05-29 2005-05-25 电灯专利信托有限公司 基于发光二极管的发射白光的照明设备
JP4386693B2 (ja) 2000-05-31 2009-12-16 パナソニック株式会社 Ｌｅｄランプおよびランプユニット
US6577073B2 (en) 2000-05-31 2003-06-10 Matsushita Electric Industrial Co., Ltd. Led lamp
US6737801B2 (en) 2000-06-28 2004-05-18 The Fox Group, Inc. Integrated color LED chip
US6636003B2 (en) 2000-09-06 2003-10-21 Spectrum Kinetics Apparatus and method for adjusting the color temperature of white semiconduct or light emitters
JP3609709B2 (ja) 2000-09-29 2005-01-12 株式会社シチズン電子 発光ダイオード
US6642666B1 (en) 2000-10-20 2003-11-04 Gelcore Company Method and device to emulate a railway searchlight signal with light emitting diodes
US6441558B1 (en) 2000-12-07 2002-08-27 Koninklijke Philips Electronics N.V. White LED luminary light control system
US20020087532A1 (en) 2000-12-29 2002-07-04 Steven Barritz Cooperative, interactive, heuristic system for the creation and ongoing modification of categorization systems
US6624350B2 (en) 2001-01-18 2003-09-23 Arise Technologies Corporation Solar power management system
US6685852B2 (en) 2001-04-27 2004-02-03 General Electric Company Phosphor blends for generating white light from near-UV/blue light-emitting devices
EP2259285B1 (en) * 2001-05-16 2014-10-22 The Trustees Of Princeton University High efficiency multi-color electro-phosphorescent OLEDs.
US6616862B2 (en) 2001-05-21 2003-09-09 General Electric Company Yellow light-emitting halophosphate phosphors and light sources incorporating the same
JP3940750B2 (ja) 2001-05-24 2007-07-04 松下電器産業株式会社 照明光源
JP3940596B2 (ja) 2001-05-24 2007-07-04 松下電器産業株式会社 照明光源
US20030030063A1 (en) 2001-07-27 2003-02-13 Krzysztof Sosniak Mixed color leds for auto vanity mirrors and other applications where color differentiation is critical
DE10137042A1 (de) 2001-07-31 2003-02-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Planare Lichtquelle auf LED-Basis
PL373724A1 (en) 2001-08-23 2005-09-05 Yukiyasu Okumura Color temperature-regulable led light
KR100923804B1 (ko) 2001-09-03 2009-10-27 파나소닉 주식회사 반도체발광소자, 발광장치 및 반도체발광소자의 제조방법
US7331681B2 (en) 2001-09-07 2008-02-19 Litepanels Llc Lighting apparatus with adjustable lenses or filters
TW574523B (en) 2001-11-23 2004-02-01 Ind Tech Res Inst Color filter of liquid crystal display
US6552495B1 (en) 2001-12-19 2003-04-22 Koninklijke Philips Electronics N.V. Adaptive control system and method with spatial uniform color metric for RGB LED based white light illumination
US6851834B2 (en) 2001-12-21 2005-02-08 Joseph A. Leysath Light emitting diode lamp having parabolic reflector and diffuser
JP4280038B2 (ja) 2002-08-05 2009-06-17 日亜化学工業株式会社 発光装置
US6683423B2 (en) 2002-04-08 2004-01-27 David W. Cunningham Lighting apparatus for producing a beam of light having a controlled luminous flux spectrum
US7093958B2 (en) 2002-04-09 2006-08-22 Osram Sylvania Inc. LED light source assembly
DE10216394B3 (de) 2002-04-12 2004-01-08 Osram Opto Semiconductors Gmbh LED-Modul
TW546854B (en) * 2002-05-21 2003-08-11 Harvatek Corp White light emitting device
US20030222268A1 (en) * 2002-05-31 2003-12-04 Yocom Perry Niel Light sources having a continuous broad emission wavelength and phosphor compositions useful therefor
US20030230977A1 (en) * 2002-06-12 2003-12-18 Epstein Howard C. Semiconductor light emitting device with fluoropolymer lens
US6998594B2 (en) 2002-06-25 2006-02-14 Koninklijke Philips Electronics N.V. Method for maintaining light characteristics from a multi-chip LED package
US8100552B2 (en) 2002-07-12 2012-01-24 Yechezkal Evan Spero Multiple light-source illuminating system
JP2004055772A (ja) * 2002-07-18 2004-02-19 Citizen Electronics Co Ltd Ｌｅｄ発光装置
DE10233050B4 (de) 2002-07-19 2012-06-14 Osram Opto Semiconductors Gmbh Lichtquelle auf LED-Basis für die Erzeugung von Licht unter Ausnutzung des Farbmischprinzips
JP3847677B2 (ja) 2002-07-23 2006-11-22 日立ソフトウエアエンジニアリング株式会社 半導体ナノ粒子、その製造方法、及び半導体ナノ粒子蛍光試薬
JP2004071807A (ja) 2002-08-06 2004-03-04 Sharp Corp 照明装置、カメラ装置及び携帯機器
JP2004083653A (ja) 2002-08-23 2004-03-18 Sharp Corp 発光装置ならびに蛍光体およびその製造方法
JP4360788B2 (ja) 2002-08-29 2009-11-11 シチズン電子株式会社 液晶表示板用のバックライト及びそれに用いる発光ダイオードの製造方法
US7768189B2 (en) 2004-08-02 2010-08-03 Lumination Llc White LEDs with tunable CRI
JP4349782B2 (ja) 2002-09-11 2009-10-21 東芝ライテック株式会社 Ｌｅｄ照明装置
US6880954B2 (en) 2002-11-08 2005-04-19 Smd Software, Inc. High intensity photocuring system
JP2004253364A (ja) 2003-01-27 2004-09-09 Matsushita Electric Ind Co Ltd 照明装置
US7042020B2 (en) 2003-02-14 2006-05-09 Cree, Inc. Light emitting device incorporating a luminescent material
US6936857B2 (en) 2003-02-18 2005-08-30 Gelcore, Llc White light LED device
JP2004253309A (ja) 2003-02-21 2004-09-09 Nichia Chem Ind Ltd 演色性を備えた特殊用途ｌｅｄ照明
US20040218387A1 (en) * 2003-03-18 2004-11-04 Robert Gerlach LED lighting arrays, fixtures and systems and method for determining human color perception
JP4203374B2 (ja) * 2003-08-06 2008-12-24 豊田合成株式会社 発光装置
US6964507B2 (en) 2003-04-25 2005-11-15 Everbrite, Llc Sign illumination system
WO2004100611A1 (en) 2003-05-06 2004-11-18 Ilumera Group Ag Led lighting module and system
JP2004356116A (ja) 2003-05-26 2004-12-16 Citizen Electronics Co Ltd 発光ダイオード
JP4399663B2 (ja) 2003-06-06 2010-01-20 スタンレー電気株式会社 Ｌｅｄ照明装置
US7000999B2 (en) 2003-06-12 2006-02-21 Ryan Jr Patrick Henry Light emitting module
JP2005005482A (ja) 2003-06-12 2005-01-06 Citizen Electronics Co Ltd Ｌｅｄ発光装置及びそれを用いたカラー表示装置
EP1644985A4 (en) 2003-06-24 2006-10-18 Gelcore Llc FULL SPECTRUM FLUID MIXTURES FOR WHITE GENERATION WITH LED CHIPS
WO2005013365A2 (en) 2003-07-30 2005-02-10 Matsushita Electric Industrial Co., Ltd. Semiconductor light emitting device, light emitting module, and lighting apparatus
DE10335077A1 (de) 2003-07-31 2005-03-03 Osram Opto Semiconductors Gmbh LED-Modul
US7329024B2 (en) 2003-09-22 2008-02-12 Permlight Products, Inc. Lighting apparatus
JP2005101296A (ja) 2003-09-25 2005-04-14 Osram-Melco Ltd 可変色発光ダイオード素子及び可変色発光ダイオードモジュール及び可変色発光ダイオード照明器具
DE10347463A1 (de) 2003-10-02 2005-04-21 Pintsch Bamag Ag LED-Signalleuchte für Schienenfahrzeuge
JP2005116363A (ja) * 2003-10-08 2005-04-28 Pioneer Plasma Display Corp プラズマディスプレイパネル
US7102172B2 (en) 2003-10-09 2006-09-05 Permlight Products, Inc. LED luminaire
JP4135611B2 (ja) 2003-10-16 2008-08-20 日産自動車株式会社 回転電機のステータ構造
JP4458804B2 (ja) 2003-10-17 2010-04-28 シチズン電子株式会社 白色ｌｅｄ
US6841804B1 (en) 2003-10-27 2005-01-11 Formosa Epitaxy Incorporation Device of white light-emitting diode
JP2005142311A (ja) 2003-11-06 2005-06-02 Tzu-Chi Cheng 発光装置
JP2005144679A (ja) 2003-11-11 2005-06-09 Roland Dg Corp インクジェットプリンタ
KR100669408B1 (ko) * 2003-11-24 2007-01-15 삼성에스디아이 주식회사 플라즈마 디스플레이 패널
TWI263356B (en) 2003-11-27 2006-10-01 Kuen-Juei Li Light-emitting device
US7095056B2 (en) 2003-12-10 2006-08-22 Sensor Electronic Technology, Inc. White light emitting device and method
US7066623B2 (en) 2003-12-19 2006-06-27 Soo Ghee Lee Method and apparatus for producing untainted white light using off-white light emitting diodes
US7250715B2 (en) 2004-02-23 2007-07-31 Philips Lumileds Lighting Company, Llc Wavelength converted semiconductor light emitting devices
US7009343B2 (en) 2004-03-11 2006-03-07 Kevin Len Li Lim System and method for producing white light using LEDs
US7256557B2 (en) 2004-03-11 2007-08-14 Avago Technologies General Ip(Singapore) Pte. Ltd. System and method for producing white light using a combination of phosphor-converted white LEDs and non-phosphor-converted color LEDs
US7083302B2 (en) * 2004-03-24 2006-08-01 J. S. Technology Co., Ltd. White light LED assembly
US20050243556A1 (en) 2004-04-30 2005-11-03 Manuel Lynch Lighting system and method
KR100655894B1 (ko) * 2004-05-06 2006-12-08 서울옵토디바이스주식회사 색온도 및 연색성이 우수한 파장변환 발광장치
US8188503B2 (en) 2004-05-10 2012-05-29 Permlight Products, Inc. Cuttable illuminated panel
US7278760B2 (en) 2004-05-24 2007-10-09 Osram Opto Semiconductor Gmbh Light-emitting electronic component
KR100665298B1 (ko) 2004-06-10 2007-01-04 서울반도체 주식회사 발광장치
WO2005124877A2 (en) 2004-06-18 2005-12-29 Philips Intellectual Property & Standards Gmbh Led with improve light emittance profile
JP4661292B2 (ja) 2004-06-21 2011-03-30 東芝ライテック株式会社 照明装置およびｌｅｄ式スポットライト
JP4546176B2 (ja) 2004-07-16 2010-09-15 京セラ株式会社 発光装置
TWI274209B (en) 2004-07-16 2007-02-21 Chi Lin Technology Co Ltd Light emitting diode and backlight module having light emitting diode
US7453195B2 (en) 2004-08-02 2008-11-18 Lumination Llc White lamps with enhanced color contrast
US20060181192A1 (en) 2004-08-02 2006-08-17 Gelcore White LEDs with tailorable color temperature
US7135664B2 (en) 2004-09-08 2006-11-14 Emteq Lighting and Cabin Systems, Inc. Method of adjusting multiple light sources to compensate for variation in light output that occurs with time
KR100524098B1 (ko) 2004-09-10 2005-10-26 럭스피아 주식회사 반도체 발광장치 및 그 제조방법
US7737459B2 (en) 2004-09-22 2010-06-15 Cree, Inc. High output group III nitride light emitting diodes
US20060067073A1 (en) * 2004-09-30 2006-03-30 Chu-Chi Ting White led device
JP2006114854A (ja) * 2004-10-18 2006-04-27 Sharp Corp 半導体発光装置、液晶表示装置用のバックライト装置
US7419839B2 (en) 2004-11-12 2008-09-02 Philips Lumileds Lighting Company, Llc Bonding an optical element to a light emitting device
US7858408B2 (en) 2004-11-15 2010-12-28 Koninklijke Philips Electronics N.V. LED with phosphor tile and overmolded phosphor in lens
US20060113548A1 (en) 2004-11-29 2006-06-01 Ching-Chung Chen Light emitting diode
US20060120073A1 (en) 2004-12-06 2006-06-08 Pickard Paul K Emergency ballast
US8288942B2 (en) 2004-12-28 2012-10-16 Cree, Inc. High efficacy white LED
US7863829B2 (en) 2004-12-30 2011-01-04 Solarone Solutions, Inc. LED lighting system
US8125137B2 (en) 2005-01-10 2012-02-28 Cree, Inc. Multi-chip light emitting device lamps for providing high-CRI warm white light and light fixtures including the same
US7564180B2 (en) 2005-01-10 2009-07-21 Cree, Inc. Light emission device and method utilizing multiple emitters and multiple phosphors
JP4679183B2 (ja) 2005-03-07 2011-04-27 シチズン電子株式会社 発光装置及び照明装置
US7358954B2 (en) 2005-04-04 2008-04-15 Cree, Inc. Synchronized light emitting diode backlighting systems and methods for displays
US20060245184A1 (en) 2005-04-29 2006-11-02 Galli Robert D Iris diffuser for adjusting light beam properties
DE102005022832A1 (de) 2005-05-11 2006-11-16 Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg Scheinwerfer für Film- und Videoaufnahmen
JP5196711B2 (ja) 2005-07-26 2013-05-15 京セラ株式会社 発光装置およびそれを用いた照明装置
TW200717866A (en) 2005-07-29 2007-05-01 Toshiba Kk Semiconductor light emitting device
JP2007067326A (ja) 2005-09-02 2007-03-15 Shinko Electric Ind Co Ltd 発光ダイオード及びその製造方法
DE102005042066A1 (de) 2005-09-03 2007-03-15 Osram Opto Semiconductors Gmbh Hinterleuchtungsanordnung mit in Leuchtgruppen angeordneten Halbleiterlichtquellen
JP2007080880A (ja) 2005-09-09 2007-03-29 Matsushita Electric Works Ltd 発光装置
KR20070033801A (ko) 2005-09-22 2007-03-27 삼성전기주식회사 발광 다이오드 패키지 및 그 제조 방법
JP2007122950A (ja) 2005-10-26 2007-05-17 Fujikura Ltd 照明装置
US7718449B2 (en) 2005-10-28 2010-05-18 Lumination Llc Wafer level package for very small footprint and low profile white LED devices
JP5166278B2 (ja) 2005-11-18 2013-03-21 クリー インコーポレイテッド 固体素子照明タイル
JP2007157831A (ja) 2005-12-01 2007-06-21 Sharp Corp 発光装置
US7213940B1 (en) 2005-12-21 2007-05-08 Led Lighting Fixtures, Inc. Lighting device and lighting method
US8112921B2 (en) 2005-12-21 2012-02-14 Cree, Inc. Sign and method for lighting
CN103925521A (zh) 2005-12-21 2014-07-16 科锐公司 照明装置
BRPI0620413A2 (pt) 2005-12-21 2011-11-08 Cree Led Lighting Solutions dispositivo de iluminação e método de iluminação
EP1969633B1 (en) 2005-12-22 2018-08-29 Cree, Inc. Lighting device
KR101408622B1 (ko) 2006-01-20 2014-06-17 크리, 인코포레이티드 루미포르 필름의 공간적 분리에 의한 고체 상태 발광기의 스펙트럼 컨텐츠 시프팅
WO2007087327A2 (en) 2006-01-25 2007-08-02 Cree Led Lighting Solutions, Inc. Circuit for lighting device, and method of lighting
JP2007266579A (ja) 2006-02-28 2007-10-11 Toshiba Lighting & Technology Corp 発光装置
JP2007258620A (ja) 2006-03-24 2007-10-04 Toshiba Lighting & Technology Corp 発光装置
US9084328B2 (en) 2006-12-01 2015-07-14 Cree, Inc. Lighting device and lighting method
US9335006B2 (en) 2006-04-18 2016-05-10 Cree, Inc. Saturated yellow phosphor converted LED and blue converted red LED
US8513875B2 (en) 2006-04-18 2013-08-20 Cree, Inc. Lighting device and lighting method
TWI460880B (zh) 2006-04-18 2014-11-11 Cree Inc 照明裝置及照明方法
EP2008019B1 (en) 2006-04-20 2015-08-05 Cree, Inc. Lighting device and lighting method
US7625103B2 (en) 2006-04-21 2009-12-01 Cree, Inc. Multiple thermal path packaging for solid state light emitting apparatus and associated assembling methods
US7648257B2 (en) 2006-04-21 2010-01-19 Cree, Inc. Light emitting diode packages
US7777166B2 (en) 2006-04-21 2010-08-17 Cree, Inc. Solid state luminaires for general illumination including closed loop feedback control
EP2021688B1 (en) 2006-05-05 2016-04-27 Cree, Inc. Lighting device
EP2027412B1 (en) 2006-05-23 2018-07-04 Cree, Inc. Lighting device
WO2007139780A2 (en) 2006-05-23 2007-12-06 Cree Led Lighting Solutions, Inc. Lighting device and method of making
US8008676B2 (en) 2006-05-26 2011-08-30 Cree, Inc. Solid state light emitting device and method of making same
BRPI0712439B1 (pt) 2006-05-31 2019-11-05 Cree, Inc. dispositivo de iluminação e método de iluminação
EP2033278B1 (en) 2006-05-31 2019-04-10 Cree, Inc. Lighting device and method of lighting
KR101378676B1 (ko) 2006-05-31 2014-03-26 크리, 인코포레이티드 색상 제어를 갖는 조명 장치 및 조명 방법
EP2060155A2 (en) 2006-08-23 2009-05-20 Cree Led Lighting Solutions, Inc. Lighting device and lighting method
JP2008071806A (ja) 2006-09-12 2008-03-27 C I Kasei Co Ltd 発光装置
TWI514715B (zh) 2006-09-13 2015-12-21 Cree Inc 用於提供電力至負載之電源供應器及電路
CN101675298B (zh) 2006-09-18 2013-12-25 科锐公司 照明装置、照明装置组合、灯具及其使用方法
TW200837308A (en) 2006-09-21 2008-09-16 Led Lighting Fixtures Inc Lighting assemblies, methods of installing same, and methods of replacing lights
JP5351034B2 (ja) 2006-10-12 2013-11-27 クリー インコーポレイテッド 照明装置、および、その製造方法
CA2666343A1 (en) 2006-10-23 2008-05-02 Cree Led Lighting Solutions, Inc. Lighting devices and methods of installing light engine housings and/or trim elements in lighting device housings
US8029155B2 (en) 2006-11-07 2011-10-04 Cree, Inc. Lighting device and lighting method
US10295147B2 (en) 2006-11-09 2019-05-21 Cree, Inc. LED array and method for fabricating same
TWI496315B (zh) 2006-11-13 2015-08-11 Cree Inc 照明裝置、被照明的殼體及照明方法
US8439531B2 (en) 2006-11-14 2013-05-14 Cree, Inc. Lighting assemblies and components for lighting assemblies
CN101611258A (zh) 2006-11-14 2009-12-23 科锐Led照明科技公司 光引擎组件
US7901111B2 (en) 2006-11-30 2011-03-08 Cree, Inc. Lighting device and lighting method
EP2100076B1 (en) 2006-11-30 2014-08-13 Cree, Inc. Light fixtures, lighting devices, and components for the same
CN101611259B (zh) 2006-12-07 2012-06-27 科锐公司 照明装置和照明方法
EP3848970A1 (en) 2007-01-22 2021-07-14 Cree, Inc. Multiple light emitting diode emitter
WO2008091837A2 (en) 2007-01-22 2008-07-31 Cree Led Lighting Solutions, Inc. Fault tolerant light emitters, systems incorporating fault tolerant light emitters and methods of fabricating fault tolerant light emitters
US8258682B2 (en) 2007-02-12 2012-09-04 Cree, Inc. High thermal conductivity packaging for solid state light emitting apparatus and associated assembling methods
US7815341B2 (en) 2007-02-14 2010-10-19 Permlight Products, Inc. Strip illumination device
WO2008103876A1 (en) 2007-02-22 2008-08-28 Cree Led Lighting Solutions, Inc. Lighting devices, methods of lighting, light filters and methods of filtering light
US7824070B2 (en) 2007-03-22 2010-11-02 Cree, Inc. LED lighting fixture
US7967480B2 (en) 2007-05-03 2011-06-28 Cree, Inc. Lighting fixture
US9310035B2 (en) 2007-05-07 2016-04-12 Cree, Inc. Light fixtures and lighting devices
TW200912204A (en) 2007-05-08 2009-03-16 Cree Led Lighting Solutions Lighting device and lighting method
CN101680604B (zh) 2007-05-08 2013-05-08 科锐公司 照明装置和照明方法
CN101688644B (zh) 2007-05-08 2011-06-15 科锐Led照明科技公司 照明装置及照明方法
TWI422785B (zh) 2007-05-08 2014-01-11 克里公司 照明裝置及照明方法
EP2153113B1 (en) 2007-05-08 2016-01-06 Cree, Inc. Lighting device and lighting method
TW200912202A (en) 2007-05-08 2009-03-16 Cree Led Lighting Solutions Lighting device and lighting method
US8403531B2 (en) 2007-05-30 2013-03-26 Cree, Inc. Lighting device and method of lighting
US8042971B2 (en) 2007-06-27 2011-10-25 Cree, Inc. Light emitting device (LED) lighting systems for emitting light in multiple directions and related methods
KR101722265B1 (ko) 2007-10-10 2017-03-31 크리, 인코포레이티드 조명 장치 및 그 제조 방법
JP2011501466A (ja) 2007-10-26 2011-01-06 クリー エル イー ディー ライティング ソリューションズ インコーポレイテッド １つまたは複数の発光体を有する照明デバイス、およびその製作方法
US8866410B2 (en) 2007-11-28 2014-10-21 Cree, Inc. Solid state lighting devices and methods of manufacturing the same
US8350461B2 (en) 2008-03-28 2013-01-08 Cree, Inc. Apparatus and methods for combining light emitters
US8240875B2 (en) 2008-06-25 2012-08-14 Cree, Inc. Solid state linear array modules for general illumination
US7893445B2 (en) 2009-11-09 2011-02-22 Cree, Inc. Solid state emitter package including red and blue emitters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3875456A (en) 1972-04-04 1975-04-01 Hitachi Ltd Multi-color semiconductor lamp
US6513949B1 (en) 1999-12-02 2003-02-04 Koninklijke Philips Electronics N.V. LED/phosphor-LED hybrid lighting systems
US20030070681A1 (en) 2001-10-04 2003-04-17 Siemens Elema Ab Dosing system
US20040217364A1 (en) 2003-05-01 2004-11-04 Cree Lighting Company, Inc. Multiple component solid state white light

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1842218A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9274343B2 (en) 2012-05-02 2016-03-01 Rockwell Automation Safety Ag Lens carrier and optical module for a light curtain and fabrication method

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US8120240B2 (en) 2012-02-21
JP2009147391A (ja) 2009-07-02
CN101099245A (zh) 2008-01-02
US7564180B2 (en) 2009-07-21
US8513873B2 (en) 2013-08-20
TW200947772A (en) 2009-11-16
CN100539215C (zh) 2009-09-09
TWI320236B (en) 2010-02-01
JP2008527708A (ja) 2008-07-24
JP2011151406A (ja) 2011-08-04
WO2006076066A3 (en) 2007-06-14
EP1842218A2 (en) 2007-10-10
JP4744534B2 (ja) 2011-08-10
CN101635294A (zh) 2010-01-27
TWI447946B (zh) 2014-08-01
EP1842218A4 (en) 2010-10-20
US20120032208A1 (en) 2012-02-09
CN101635294B (zh) 2012-05-30
JP5379819B2 (ja) 2013-12-25
TW200625698A (en) 2006-07-16
US20060152140A1 (en) 2006-07-13

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