WO2008101156A3 - High color rendering index white led light system using multi-wavelength pump sources and mixed phosphors - Google Patents

High color rendering index white led light system using multi-wavelength pump sources and mixed phosphors Download PDF

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Publication number
WO2008101156A3
WO2008101156A3 PCT/US2008/054073 US2008054073W WO2008101156A3 WO 2008101156 A3 WO2008101156 A3 WO 2008101156A3 US 2008054073 W US2008054073 W US 2008054073W WO 2008101156 A3 WO2008101156 A3 WO 2008101156A3
Authority
WO
WIPO (PCT)
Prior art keywords
color rendering
rendering index
led light
white led
high color
Prior art date
Application number
PCT/US2008/054073
Other languages
French (fr)
Other versions
WO2008101156A9 (en
WO2008101156A2 (en
Inventor
Edward Bailey
Ellen S Tormey
Original Assignee
Lighting Science Group Corp
Edward Bailey
Ellen S Tormey
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lighting Science Group Corp, Edward Bailey, Ellen S Tormey filed Critical Lighting Science Group Corp
Priority to EP08729960.8A priority Critical patent/EP2122240A4/en
Priority to US12/527,087 priority patent/US8192047B2/en
Publication of WO2008101156A2 publication Critical patent/WO2008101156A2/en
Publication of WO2008101156A9 publication Critical patent/WO2008101156A9/en
Publication of WO2008101156A3 publication Critical patent/WO2008101156A3/en

Links

Classifications

    • 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
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
    • 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
    • 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
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
    • H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50—Wavelength conversion elements
    • H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
    • H01L33/502—Wavelength conversion materials
    • H01L33/504—Elements with two or more wavelength conversion materials

Abstract

The present invention relates to an LED lighting system producing light having improved Color Rendering Index (CRI). The system includes a plurality of LEDs wherein the LEDs have at least a first and second characteristic wavelength, and a mixed phosphor layer overlying at least one of a portion of the plurality of LEDs, the phosphor layer absorbing at least a portion of the LED-emitted light and producing phosphor-emitted light, wherein the phosphors includes a third characteristic wavelength and a fourth characteristic wavelength, wherein the third characteristic wavelength and fourth characteristic wavelength are not the same.
PCT/US2008/054073 2007-02-15 2008-02-15 High color rendering index white led light system using multi-wavelength pump sources and mixed phosphors WO2008101156A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08729960.8A EP2122240A4 (en) 2007-02-15 2008-02-15 High color rendering index white led light system using multi-wavelength pump sources and mixed phosphors
US12/527,087 US8192047B2 (en) 2007-02-15 2008-02-15 High color rendering index white LED light system using multi-wavelength pump sources and mixed phosphors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US89016007P 2007-02-15 2007-02-15
US60/890,160 2007-02-15

Publications (3)

Publication Number Publication Date
WO2008101156A2 WO2008101156A2 (en) 2008-08-21
WO2008101156A9 WO2008101156A9 (en) 2008-10-30
WO2008101156A3 true WO2008101156A3 (en) 2008-12-18

Family

ID=39690812

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/054073 WO2008101156A2 (en) 2007-02-15 2008-02-15 High color rendering index white led light system using multi-wavelength pump sources and mixed phosphors

Country Status (4)

Country Link
US (1) US8192047B2 (en)
EP (1) EP2122240A4 (en)
TW (1) TW200848783A (en)
WO (1) WO2008101156A2 (en)

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US8253336B2 (en) 2010-07-23 2012-08-28 Biological Illumination, Llc LED lamp for producing biologically-corrected light
US8686641B2 (en) 2011-12-05 2014-04-01 Biological Illumination, Llc Tunable LED lamp for producing biologically-adjusted light
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US8841864B2 (en) 2011-12-05 2014-09-23 Biological Illumination, Llc Tunable LED lamp for producing biologically-adjusted light
US8760370B2 (en) 2011-05-15 2014-06-24 Lighting Science Group Corporation System for generating non-homogenous light and associated methods
US9024536B2 (en) 2011-12-05 2015-05-05 Biological Illumination, Llc Tunable LED lamp for producing biologically-adjusted light and associated methods
US9827439B2 (en) 2010-07-23 2017-11-28 Biological Illumination, Llc System for dynamically adjusting circadian rhythm responsive to scheduled events and associated methods
US9681522B2 (en) 2012-05-06 2017-06-13 Lighting Science Group Corporation Adaptive light system and associated methods
US8401231B2 (en) 2010-11-09 2013-03-19 Biological Illumination, Llc Sustainable outdoor lighting system for use in environmentally photo-sensitive area
US8698388B2 (en) * 2011-02-03 2014-04-15 Cree, Inc. Lighting apparatus providing increased luminous flux while maintaining color point and CRI
US8754832B2 (en) 2011-05-15 2014-06-17 Lighting Science Group Corporation Lighting system for accenting regions of a layer and associated methods
US8901850B2 (en) 2012-05-06 2014-12-02 Lighting Science Group Corporation Adaptive anti-glare light system and associated methods
US9173269B2 (en) 2011-05-15 2015-10-27 Lighting Science Group Corporation Lighting system for accentuating regions of a layer and associated methods
US9289574B2 (en) 2011-12-05 2016-03-22 Biological Illumination, Llc Three-channel tuned LED lamp for producing biologically-adjusted light
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US8866414B2 (en) 2011-12-05 2014-10-21 Biological Illumination, Llc Tunable LED lamp for producing biologically-adjusted light
US9913341B2 (en) 2011-12-05 2018-03-06 Biological Illumination, Llc LED lamp for producing biologically-adjusted light including a cyan LED
US10090442B2 (en) * 2012-04-06 2018-10-02 Philips Lighting Holding B.V. White light emitting module
US9402294B2 (en) 2012-05-08 2016-07-26 Lighting Science Group Corporation Self-calibrating multi-directional security luminaire and associated methods
US9006987B2 (en) 2012-05-07 2015-04-14 Lighting Science Group, Inc. Wall-mountable luminaire and associated systems and methods
US8680457B2 (en) 2012-05-07 2014-03-25 Lighting Science Group Corporation Motion detection system and associated methods having at least one LED of second set of LEDs to vary its voltage
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US9174067B2 (en) 2012-10-15 2015-11-03 Biological Illumination, Llc System for treating light treatable conditions and associated methods
DE102012111564A1 (en) * 2012-11-29 2014-06-18 Osram Opto Semiconductors Gmbh Illumination device for lighting different materials e.g. newsprint, has white light comprising color rendering index and blue light portion, where peak wavelength of blue light portion is provided with specific nanometer
US9347655B2 (en) 2013-03-11 2016-05-24 Lighting Science Group Corporation Rotatable lighting device
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JP6358457B2 (en) * 2014-01-20 2018-07-18 パナソニックＩｐマネジメント株式会社 Light emitting device, illumination light source, and illumination device
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Also Published As

Publication number Publication date
WO2008101156A9 (en) 2008-10-30
US8192047B2 (en) 2012-06-05
EP2122240A4 (en) 2013-12-04
TW200848783A (en) 2008-12-16
US20100118510A1 (en) 2010-05-13
WO2008101156A2 (en) 2008-08-21
EP2122240A2 (en) 2009-11-25

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