WO2007124276A3 - Light emitting diode packages - Google Patents

Light emitting diode packages Download PDF

Info

Publication number
WO2007124276A3
WO2007124276A3 PCT/US2007/066417 US2007066417W WO2007124276A3 WO 2007124276 A3 WO2007124276 A3 WO 2007124276A3 US 2007066417 W US2007066417 W US 2007066417W WO 2007124276 A3 WO2007124276 A3 WO 2007124276A3
Authority
WO
WIPO (PCT)
Prior art keywords
light emitting
emitting diode
leds
pcb
backing
Prior art date
Application number
PCT/US2007/066417
Other languages
French (fr)
Other versions
WO2007124276A2 (en
Inventor
Russell G Villard
Original Assignee
Cree Inc
Russell G Villard
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 Inc, Russell G Villard filed Critical Cree Inc
Priority to JP2009506690A priority Critical patent/JP2009534851A/en
Priority to EP07760470.0A priority patent/EP2010819B1/en
Publication of WO2007124276A2 publication Critical patent/WO2007124276A2/en
Publication of WO2007124276A3 publication Critical patent/WO2007124276A3/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-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
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10Controlling the intensity of the light
    • H05B45/14Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40Details of LED load circuits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2103/00Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2105/00Planar light sources
    • F21Y2105/10Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

Lighting packages are described for light emitting diode (LED) lighting solutions having a wide variety of applications which seek to balance criteria such as heat dissipation, brightness, and color uniformity. The present approach includes a backing of thermally conductive material and two or more arrays of LEDs attached to a printed circuit board (PCB). The PCB is attached to the top surface of the backing and the two or more arrays of LEDs are separated by a selected distance to balance heat dissipation and color uniformity of the LEDs.
PCT/US2007/066417 2006-04-21 2007-04-11 Light emitting diode packages WO2007124276A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009506690A JP2009534851A (en) 2006-04-21 2007-04-11 LED package
EP07760470.0A EP2010819B1 (en) 2006-04-21 2007-04-11 Light emitting diode packages

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/379,709 US7648257B2 (en) 2006-04-21 2006-04-21 Light emitting diode packages
US11/379,709 2006-04-21

Publications (2)

Publication Number Publication Date
WO2007124276A2 WO2007124276A2 (en) 2007-11-01
WO2007124276A3 true WO2007124276A3 (en) 2009-03-05

Family

ID=38619304

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/066417 WO2007124276A2 (en) 2006-04-21 2007-04-11 Light emitting diode packages

Country Status (4)

Country Link
US (2) US7648257B2 (en)
EP (1) EP2010819B1 (en)
JP (1) JP2009534851A (en)
WO (1) WO2007124276A2 (en)

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US7648257B2 (en) 2010-01-19
US8192056B2 (en) 2012-06-05
EP2010819B1 (en) 2018-03-07
US20070247847A1 (en) 2007-10-25
EP2010819A2 (en) 2009-01-07
WO2007124276A2 (en) 2007-11-01
US20100090606A1 (en) 2010-04-15
JP2009534851A (en) 2009-09-24

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