EP2523534A3 - Apparatus and methods for tuning of emitter with multiple leds to a single color bin - Google Patents

Apparatus and methods for tuning of emitter with multiple leds to a single color bin Download PDF

Info

Publication number
EP2523534A3
EP2523534A3 EP12166091.4A EP12166091A EP2523534A3 EP 2523534 A3 EP2523534 A3 EP 2523534A3 EP 12166091 A EP12166091 A EP 12166091A EP 2523534 A3 EP2523534 A3 EP 2523534A3
Authority
EP
European Patent Office
Prior art keywords
color
tuning
methods
lamp
input current
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP12166091.4A
Other languages
German (de)
French (fr)
Other versions
EP2523534A2 (en
EP2523534B1 (en
Inventor
Xiantao Yan
Kachun Lee
Zequn Mei
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ledengin Inc
Original Assignee
Ledengin 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 US13/106,808 external-priority patent/US8598793B2/en
Priority claimed from US13/106,810 external-priority patent/US8513900B2/en
Application filed by Ledengin Inc filed Critical Ledengin Inc
Publication of EP2523534A2 publication Critical patent/EP2523534A2/en
Publication of EP2523534A3 publication Critical patent/EP2523534A3/en
Application granted granted Critical
Publication of EP2523534B1 publication Critical patent/EP2523534B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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]
    • H05B45/20—Controlling the colour of the light
    • 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
    • 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
    • F21K9/62—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using mixing chambers, e.g. housings with reflective walls
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Apparatus and methods are provided for tuning the color of an LED-based lamp (100) to a desired color or color temperature. The lamp (100) can include two or more independently addressable groups of LEDs associated with different colors or color temperatures. The color (or color temperature) of the output light is tuned by controllably dividing an input current among the groups of LEDs. An optimal division of the input current is determined based on a linear interpolation between measured values of color or color temperature produced by at least two different divisions of the input current. Tuning can be performed once, e.g., during manufacture, and the lamp (100) does not require active feedback components for maintaining color temperature.
EP12166091.4A 2011-05-12 2012-04-28 Apparatus and methods for tuning of emitter with multiple LEDs to a single color bin Active EP2523534B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/106,808 US8598793B2 (en) 2011-05-12 2011-05-12 Tuning of emitter with multiple LEDs to a single color bin
US13/106,810 US8513900B2 (en) 2011-05-12 2011-05-12 Apparatus for tuning of emitter with multiple LEDs to a single color bin

Publications (3)

Publication Number Publication Date
EP2523534A2 EP2523534A2 (en) 2012-11-14
EP2523534A3 true EP2523534A3 (en) 2013-08-21
EP2523534B1 EP2523534B1 (en) 2019-08-07

Family

ID=46395448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12166091.4A Active EP2523534B1 (en) 2011-05-12 2012-04-28 Apparatus and methods for tuning of emitter with multiple LEDs to a single color bin

Country Status (3)

Country Link
EP (1) EP2523534B1 (en)
JP (1) JP6244082B2 (en)
CN (2) CN102781140B (en)

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KR20140111419A (en) * 2013-03-11 2014-09-19 삼성전자주식회사 Lighting of light emitting diode and method for manufacturing the lighting
TWM464825U (en) * 2013-04-29 2013-11-01 Macroblock Inc Color temperature adjustable light emitting device
DE102013207961A1 (en) * 2013-04-30 2014-10-30 Tridonic Jennersdorf Gmbh A method of changing the color location of the visible light emitted by an LED module
JP6171909B2 (en) * 2013-12-12 2017-08-02 株式会社デンソー Chromaticity correction device
EP3122160B1 (en) * 2014-03-20 2021-05-05 Toshiba Materials Co., Ltd. Light-emitting device and led light bulb
JP6611036B2 (en) * 2015-09-10 2019-11-27 パナソニックＩｐマネジメント株式会社 Light emitting device and light source for illumination
KR102374266B1 (en) * 2015-10-02 2022-03-18 삼성전자주식회사 White light emitting module and led lighting apparatus
US10034346B2 (en) 2016-04-27 2018-07-24 Lumileds Llc Dim to warm controller for LEDs
CN106658872A (en) * 2017-02-28 2017-05-10 漳州立达信光电子科技有限公司 Lamp device
CN107516075B (en) 2017-08-03 2020-10-09 安徽华米智能科技有限公司 Electrocardiosignal detection method and device and electronic equipment
US10575374B2 (en) 2018-03-09 2020-02-25 Ledengin, Inc. Package for flip-chip LEDs with close spacing of LED chips
CN108447856A (en) * 2018-03-14 2018-08-24 厦门信达光电物联科技研究院有限公司 A kind of tunable optical toning LED integrated optical sources
CN109140252A (en) * 2018-08-27 2019-01-04 佛山市顺德区蚬华多媒体制品有限公司 Lamps and lanterns, LED light source and its manufacturing method
US10517156B1 (en) 2019-01-25 2019-12-24 Lumileds Holding B.V. Hybrid driving scheme for RGB color tuning
CN110324936B (en) * 2019-06-21 2021-05-25 擎茂微电子（深圳）有限公司 Address code arranging method for controlling lamp string type decorative lamp point by external signal
US10652962B1 (en) 2019-06-27 2020-05-12 Lumileds Llc Dim-to-warm LED circuit
GB2589552A (en) * 2019-10-09 2021-06-09 Skyjoy Ltd A luminaire and illumination system
CN111107690A (en) * 2020-01-16 2020-05-05 区江枫 LED lamp bead assembly and color temperature adjusting method thereof
CN114909631A (en) * 2021-02-09 2022-08-16 金龙照明股份有限公司 Lighting device capable of changing illumination angle and color temperature by adjusting luminous intensity
USD1011573S1 (en) 2021-03-18 2024-01-16 Milwaukee Electric Tool Corporation Lighting apparatus
WO2024178976A1 (en) * 2023-02-28 2024-09-06 美智光电科技股份有限公司 Light source module and lamp

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EP1152642A2 (en) * 2000-04-27 2001-11-07 Agilent Technologies, Inc. (a Delaware corporation) Method and apparatus for measuring spectral content of LED light source and control thereof
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US20070235639A1 (en) * 2003-06-23 2007-10-11 Advanced Optical Technologies, Llc Integrating chamber LED lighting with modulation to set color and/or intensity of output
US20080088244A1 (en) * 2005-01-20 2008-04-17 Sugatsune Kogyo Co., Ltd. Variable Color Illumination Apparatus
WO2008061560A1 (en) * 2006-11-22 2008-05-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Coloured lamp and method for generating coloured light with a predefined colour locus using a lamp
WO2008152922A1 (en) * 2007-06-15 2008-12-18 Sharp Kabushiki Kaisha Solid state illumination system
WO2009073394A2 (en) * 2007-11-28 2009-06-11 Cree Led Lighting Solutions, Inc. Solid state lighting devices and methods of manufacturing the same

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Patent Citations (10)

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Publication number Priority date Publication date Assignee Title
EP0734009A2 (en) * 1995-03-20 1996-09-25 Siemens Aktiengesellschaft Circuit for generating an adjustable output voltage higher than the input voltage, especially for providing contrast voltages in a liquid crystal display
US20020047624A1 (en) * 2000-03-27 2002-04-25 Stam Joseph S. Lamp assembly incorporating optical feedback
EP1152642A2 (en) * 2000-04-27 2001-11-07 Agilent Technologies, Inc. (a Delaware corporation) Method and apparatus for measuring spectral content of LED light source and control thereof
US20070235639A1 (en) * 2003-06-23 2007-10-11 Advanced Optical Technologies, Llc Integrating chamber LED lighting with modulation to set color and/or intensity of output
WO2005009085A1 (en) * 2003-07-23 2005-01-27 Tir Systems Ltd. Control system for an illumination device incorporating discrete light sources
WO2006071628A2 (en) * 2004-12-20 2006-07-06 Color Kinetics Incorporated Color management methods and apparatus for lighting
US20080088244A1 (en) * 2005-01-20 2008-04-17 Sugatsune Kogyo Co., Ltd. Variable Color Illumination Apparatus
WO2008061560A1 (en) * 2006-11-22 2008-05-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Coloured lamp and method for generating coloured light with a predefined colour locus using a lamp
WO2008152922A1 (en) * 2007-06-15 2008-12-18 Sharp Kabushiki Kaisha Solid state illumination system
WO2009073394A2 (en) * 2007-11-28 2009-06-11 Cree Led Lighting Solutions, Inc. Solid state lighting devices and methods of manufacturing the same

Also Published As

Publication number Publication date
CN105657893A (en) 2016-06-08
CN102781140B (en) 2016-02-03
CN102781140A (en) 2012-11-14
EP2523534A2 (en) 2012-11-14
JP6244082B2 (en) 2017-12-06
EP2523534B1 (en) 2019-08-07
CN105657893B (en) 2019-06-07
JP2012238596A (en) 2012-12-06

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