WO2009073394A3 - Solid state lighting devices and methods of manufacturing the same - Google Patents

Solid state lighting devices and methods of manufacturing the same Download PDF

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Publication number
WO2009073394A3
WO2009073394A3 PCT/US2008/084284 US2008084284W WO2009073394A3 WO 2009073394 A3 WO2009073394 A3 WO 2009073394A3 US 2008084284 W US2008084284 W US 2008084284W WO 2009073394 A3 WO2009073394 A3 WO 2009073394A3
Authority
WO
WIPO (PCT)
Prior art keywords
strings
string
current
lighting devices
solid state
Prior art date
Application number
PCT/US2008/084284
Other languages
French (fr)
Other versions
WO2009073394A2 (en
Inventor
Gerald H. Negley
Antony Paul Van De Ven
Kenneth R. Byrd
Peter J. Myers
Michael Harris
Original Assignee
Cree Led Lighting Solutions, Inc.
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 Cree Led Lighting Solutions, Inc. filed Critical Cree Led Lighting Solutions, Inc.
Priority to CN2008801187728A priority Critical patent/CN101889475B/en
Priority to EP08857984A priority patent/EP2225914A2/en
Priority to JP2010536072A priority patent/JP5399406B2/en
Publication of WO2009073394A2 publication Critical patent/WO2009073394A2/en
Publication of WO2009073394A3 publication Critical patent/WO2009073394A3/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/22—Controlling the colour of the light using optical feedback

Abstract

Lighting devices comprising first, second and third strings of solid state lighting devices. One aspect further comprises means for supplying first fixed current through the first string, means for supplying second fixed current through the second string, and means for supplying current through the third string, hi a second aspect, the first and second strings emit light within a specific area on a 1931 CIE Chromaticity Diagram, and the third string emits light of dominant wavelength 600-640 nm. A third aspect further comprises a power line and a power supply configured to supply a first and second fixed currents through the first and second strings, respectively, and supply a current to the third string. A method of making a lighting device, comprising measuring color output, adjusting current to first, second and/or third strings, and permanently setting currents to the first and second strings.
PCT/US2008/084284 2007-11-28 2008-11-21 Solid state lighting devices and methods of manufacturing the same WO2009073394A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2008801187728A CN101889475B (en) 2007-11-28 2008-11-21 Solid state lighting devices and methods of manufacturing the same
EP08857984A EP2225914A2 (en) 2007-11-28 2008-11-21 Solid state lighting devices and methods of manufacturing the same
JP2010536072A JP5399406B2 (en) 2007-11-28 2008-11-21 Lighting device and manufacturing method thereof

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US99072407P 2007-11-28 2007-11-28
US60/990,724 2007-11-28
US4140408P 2008-04-01 2008-04-01
US61/041,404 2008-04-01
US12/257,804 US8866410B2 (en) 2007-11-28 2008-10-24 Solid state lighting devices and methods of manufacturing the same
US12/257,804 2008-10-24

Publications (2)

Publication Number Publication Date
WO2009073394A2 WO2009073394A2 (en) 2009-06-11
WO2009073394A3 true WO2009073394A3 (en) 2010-04-22

Family

ID=40344852

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/084284 WO2009073394A2 (en) 2007-11-28 2008-11-21 Solid state lighting devices and methods of manufacturing the same

Country Status (6)

Country Link
US (2) US8866410B2 (en)
EP (1) EP2225914A2 (en)
JP (1) JP5399406B2 (en)
KR (1) KR20100093576A (en)
CN (1) CN101889475B (en)
WO (1) WO2009073394A2 (en)

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