WO2004100220A3 - Light emitting diode light source - Google Patents

Light emitting diode light source Download PDF

Info

Publication number
WO2004100220A3
WO2004100220A3 PCT/US2004/012991 US2004012991W WO2004100220A3 WO 2004100220 A3 WO2004100220 A3 WO 2004100220A3 US 2004012991 W US2004012991 W US 2004012991W WO 2004100220 A3 WO2004100220 A3 WO 2004100220A3
Authority
WO
WIPO (PCT)
Prior art keywords
light emitting
emitting diodes
emitting diode
light source
light
Prior art date
Application number
PCT/US2004/012991
Other languages
French (fr)
Other versions
WO2004100220A2 (en
Inventor
Joel M Dry
Original Assignee
Optolum 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
Priority claimed from US10/430,698 external-priority patent/US6815724B2/en
Application filed by Optolum Inc filed Critical Optolum Inc
Publication of WO2004100220A2 publication Critical patent/WO2004100220A2/en
Publication of WO2004100220A3 publication Critical patent/WO2004100220A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/54—Cooling arrangements using thermoelectric means, e.g. Peltier elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/42—Forced cooling
    • 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]
    • 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

Abstract

A light source (100) that utilizes light emitting diodes (109) that emit white light is disclosed. The diodes are mounted on an elongate member (101) having at least two surfaces upon which the light emitting diodes are mounted. The elongate member is thermally conductive and is utilized to cool the light emitting diodes. In the illustrative embodiment, the elongate member is a tubular member through which a heat transfer medium (102) flows. A cooling or fluid movement device (199) coupled with the elongate thermally conductive member enhances cooling of the light emitting diodes.
PCT/US2004/012991 2003-05-05 2004-04-30 Light emitting diode light source WO2004100220A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/430,698 2003-05-05
US10/430,698 US6815724B2 (en) 2002-05-29 2003-05-05 Light emitting diode light source
US10/430,696 US20040026721A1 (en) 2002-05-29 2003-05-05 Light emitting diode light source
US10/430,696 2003-05-05

Publications (2)

Publication Number Publication Date
WO2004100220A2 WO2004100220A2 (en) 2004-11-18
WO2004100220A3 true WO2004100220A3 (en) 2005-01-20

Family

ID=33436686

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/012991 WO2004100220A2 (en) 2003-05-05 2004-04-30 Light emitting diode light source

Country Status (1)

Country Link
WO (1) WO2004100220A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI257465B (en) 2004-10-11 2006-07-01 Neobulb Technologies Inc Lighting device with high heat dissipation efficiency
EP1528315B1 (en) * 2005-01-11 2009-08-05 NeoBulb Technologies, Inc. Light set with heat dissipation means
JP4751098B2 (en) * 2005-04-28 2011-08-17 シチズン電子株式会社 Light emitting unit
DE202007013346U1 (en) * 2007-09-24 2007-11-29 Osram Gesellschaft mit beschränkter Haftung Lighting device and cooling device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5890794A (en) * 1996-04-03 1999-04-06 Abtahi; Homayoon Lighting units
US6274924B1 (en) * 1998-11-05 2001-08-14 Lumileds Lighting, U.S. Llc Surface mountable LED package
US6411046B1 (en) * 2000-12-27 2002-06-25 Koninklijke Philips Electronics, N. V. Effective modeling of CIE xy coordinates for a plurality of LEDs for white LED light control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5890794A (en) * 1996-04-03 1999-04-06 Abtahi; Homayoon Lighting units
US6274924B1 (en) * 1998-11-05 2001-08-14 Lumileds Lighting, U.S. Llc Surface mountable LED package
US6411046B1 (en) * 2000-12-27 2002-06-25 Koninklijke Philips Electronics, N. V. Effective modeling of CIE xy coordinates for a plurality of LEDs for white LED light control

Also Published As

Publication number Publication date
WO2004100220A2 (en) 2004-11-18

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