TW200518367A - Light emission control apparatus and light emission control method with temperature-sensitive driving current control - Google Patents
Light emission control apparatus and light emission control method with temperature-sensitive driving current controlInfo
- Publication number
- TW200518367A TW200518367A TW093130976A TW93130976A TW200518367A TW 200518367 A TW200518367 A TW 200518367A TW 093130976 A TW093130976 A TW 093130976A TW 93130976 A TW93130976 A TW 93130976A TW 200518367 A TW200518367 A TW 200518367A
- Authority
- TW
- Taiwan
- Prior art keywords
- light emission
- temperature
- emission control
- ifmax
- current
- Prior art date
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
- H05B45/18—Controlling the intensity of the light using temperature feedback
-
- 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/56—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving measures to prevent abnormal temperature of the LEDs
Landscapes
- Led Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003361169A JP3984214B2 (ja) | 2003-10-21 | 2003-10-21 | 発光制御装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW200518367A true TW200518367A (en) | 2005-06-01 |
Family
ID=34509931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW093130976A TW200518367A (en) | 2003-10-21 | 2004-10-13 | Light emission control apparatus and light emission control method with temperature-sensitive driving current control |
Country Status (5)
Country | Link |
---|---|
US (1) | US7248002B2 (zh) |
JP (1) | JP3984214B2 (zh) |
KR (1) | KR20050038556A (zh) |
CN (1) | CN1638586A (zh) |
TW (1) | TW200518367A (zh) |
Families Citing this family (58)
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JP2005286290A (ja) * | 2004-03-02 | 2005-10-13 | Fuji Photo Film Co Ltd | 発光素子の駆動制御方法および装置、並びに電子機器 |
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DE102006056057A1 (de) * | 2006-02-28 | 2007-09-06 | Samsung Electro - Mechanics Co., Ltd., Suwon | Antriebsvorrichtung für ein farbiges LED-Hintergrundlicht |
JP2007252516A (ja) * | 2006-03-22 | 2007-10-04 | Olympus Medical Systems Corp | 医療機器 |
JP5358878B2 (ja) * | 2006-04-26 | 2013-12-04 | コニカミノルタ株式会社 | 発光素子、発光モジュール、照明装置、および画像投影装置 |
JP5049644B2 (ja) * | 2006-05-12 | 2012-10-17 | 三洋電機株式会社 | 光源制御装置及び映像表示装置 |
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JP2008166412A (ja) | 2006-12-27 | 2008-07-17 | Koito Mfg Co Ltd | 発光素子駆動回路及び車両用灯具 |
US7504783B2 (en) * | 2007-03-23 | 2009-03-17 | National Semiconductor Corporation | Circuit for driving and monitoring an LED |
KR20100021477A (ko) * | 2007-05-20 | 2010-02-24 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 컬러 led 광원을 효율적으로 이용하는 백색광 백라이트 등 |
JP5388441B2 (ja) * | 2007-11-08 | 2014-01-15 | キヤノン株式会社 | 発光制御装置及び発光制御方法 |
WO2009095853A2 (en) * | 2008-01-28 | 2009-08-06 | Nxp B.V. | System and method for estimating the junction temperature of a light emitting diode |
WO2009095854A2 (en) * | 2008-01-28 | 2009-08-06 | Nxp B.V. | Led driver circuit and method, and system and method for estimating the junction temperature of a light emitting diode |
JP5049887B2 (ja) * | 2008-03-05 | 2012-10-17 | 株式会社フジクラ | 光伝送装置 |
DE102008018808A1 (de) * | 2008-04-15 | 2009-10-22 | Ledon Lighting Jennersdorf Gmbh | Mikrocontroller optimierte Pulsweitenmodulation-(PWM)-Ansteuerung einer Licht emittierenden Diode(LED) |
US20100007588A1 (en) * | 2008-07-09 | 2010-01-14 | Adaptive Micro Systems Llc | System and method for led degradation and temperature compensation |
US20110051128A1 (en) * | 2009-01-26 | 2011-03-03 | Rohm Co., Ltd. | Semiconductor Device and Electronics Equipped Therewith |
JP5287378B2 (ja) * | 2009-03-12 | 2013-09-11 | カシオ計算機株式会社 | 投影装置、投影方法及びプログラム |
JP5448214B2 (ja) * | 2010-01-15 | 2014-03-19 | Necディスプレイソリューションズ株式会社 | 投写型表示装置および光源制御方法 |
CN102138799B (zh) * | 2010-01-28 | 2013-07-17 | 深圳市索莱瑞医疗技术有限公司 | 一种高精度血氧探头波长补偿方法 |
US8605763B2 (en) | 2010-03-31 | 2013-12-10 | Microsoft Corporation | Temperature measurement and control for laser and light-emitting diodes |
JP2012003156A (ja) * | 2010-06-18 | 2012-01-05 | Funai Electric Co Ltd | 表示装置 |
CN102960071B (zh) * | 2010-06-28 | 2015-09-09 | 皇家飞利浦电子股份有限公司 | 用于产生预定类型的环境照明的方法和设备 |
US9480121B2 (en) | 2010-09-30 | 2016-10-25 | Musco Corporation | Apparatus, method, and system for LED fixture temperature measurement, control, and calibration |
GB201018417D0 (en) | 2010-11-01 | 2010-12-15 | Gas Sensing Solutions Ltd | Apparatus and method for generating light pulses from LEDs in optical absorption gas sensors |
US8723427B2 (en) | 2011-04-05 | 2014-05-13 | Abl Ip Holding Llc | Systems and methods for LED control using on-board intelligence |
CN102170733A (zh) * | 2011-05-05 | 2011-08-31 | 深圳市银盾科技开发有限公司 | 一种大功率led数控照明方法 |
JP5971578B2 (ja) | 2011-08-22 | 2016-08-17 | パナソニックIpマネジメント株式会社 | 点灯装置、前照灯点灯装置及びそれを用いた前照灯並びに車両 |
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US9713226B2 (en) | 2011-10-02 | 2017-07-18 | Cree, Inc. | Over-voltage handling of lighting device |
JP2013239647A (ja) * | 2012-05-16 | 2013-11-28 | Sharp Corp | 発光素子駆動装置、表示装置、テレビジョン受像機、プログラム、および記録媒体 |
JP6074195B2 (ja) * | 2012-08-30 | 2017-02-01 | コイト電工株式会社 | Led光束制御装置、道路照明装置 |
JP5993671B2 (ja) * | 2012-09-10 | 2016-09-14 | コイト電工株式会社 | Led光束制御装置、道路照明装置 |
US9119248B2 (en) * | 2012-12-18 | 2015-08-25 | General Electric Company | Method for controlling a light emitting device in a cooktop appliance |
ITTO20130211A1 (it) * | 2013-03-18 | 2013-06-17 | Giuseppe Quaranta | Sistema di ottimizzazione di un dispositivo fotoemettitore |
PL3019812T3 (pl) | 2013-07-09 | 2019-04-30 | Zieger Cory | Modułowy holograficzny system celowniczy |
WO2015009720A2 (en) | 2013-07-15 | 2015-01-22 | OptiFlow, Inc. | Gun sight |
US10078020B2 (en) * | 2013-08-23 | 2018-09-18 | Whirlpool Corporation | Methods and apparatus to determine home appliance cabinet temperature using a light emitting diode (LED) |
CN103582258B (zh) * | 2013-11-03 | 2015-11-04 | 胡军 | Led驱动装置及方法 |
CN103582257A (zh) * | 2013-11-03 | 2014-02-12 | 胡军 | Led驱动装置及方法 |
DE202014001507U1 (de) | 2014-02-21 | 2014-05-19 | Nucon Gbr Gert Niggemeyer & Jörg Niggemeyer (Vertretungsberechtigter Gesellschafter Jörg Niggemeyer, 21244 Buchholz) | Schaltung zum Betrieb und der Vermessung von einer oder mehreren LED mit einem Microcontroler |
KR102209034B1 (ko) * | 2014-07-30 | 2021-01-28 | 엘지이노텍 주식회사 | 발광 모듈 |
KR20160087988A (ko) * | 2015-01-14 | 2016-07-25 | 삼성디스플레이 주식회사 | 엘이디 온도 측정 장치 및 그것의 온도 측정 방법 |
EP3314314A4 (en) | 2015-06-26 | 2018-06-20 | Ziel Optics, Inc. | Holographic weapon sight with optimized beam angles |
US10254532B2 (en) | 2015-06-26 | 2019-04-09 | Ziel Optics, Inc. | Hybrid holographic sight |
CN105824344B (zh) * | 2015-08-31 | 2017-08-15 | 维沃移动通信有限公司 | 一种电流的调节方法及终端 |
US20200271628A1 (en) * | 2016-03-01 | 2020-08-27 | Shimadzu Corporation | Absorbance detector and chromatograph provided with same |
CN105554991B (zh) * | 2016-03-05 | 2018-09-28 | 上海斐讯数据通信技术有限公司 | 一种增强闪光灯亮度的方法及智能终端 |
FR3054375A1 (fr) * | 2016-07-22 | 2018-01-26 | Valeo Vision | Controle du flux lumineux d'une del |
CN106791021B (zh) * | 2016-11-30 | 2018-11-30 | 维沃移动通信有限公司 | 一种闪光灯的控制方法及移动终端 |
KR20230050485A (ko) * | 2017-07-21 | 2023-04-14 | 루미리즈 홀딩 비.브이. | 세그먼트화된 플래시 시스템을 제어하는 방법 |
ES2933120T3 (es) * | 2017-07-27 | 2023-02-02 | Signify Holding Bv | Sistemas, métodos y aparatos de compensación de datos de señal analógica de una luminaria utilizando estimaciones de temperatura ambiente |
JP7228111B2 (ja) * | 2018-10-02 | 2023-02-24 | 日亜化学工業株式会社 | 紫外線照射装置及び紫外線硬化樹脂の硬化方法 |
EP3641292A1 (en) * | 2018-10-18 | 2020-04-22 | Aptiv Technologies Limited | Camera for a vehicle vision system |
FR3096758B1 (fr) * | 2019-05-29 | 2021-06-25 | Valeo Vision | Procédé de fonctionnement d'un dispositif pour véhicule automobile et dispositif pour véhicule automobile |
FR3096760B1 (fr) * | 2019-05-29 | 2021-06-25 | Valeo Vision | Procédé de fonctionnement d'un dispositif d'éclairage automobile et dispositif d'éclairage automobile |
CN111741570B (zh) * | 2020-07-24 | 2020-11-24 | 武汉精立电子技术有限公司 | 自适应电压的恒流电路和校准装置及方法 |
Family Cites Families (8)
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US5024535A (en) * | 1989-12-20 | 1991-06-18 | United Technologies Corporation | Semiconductor light source temperature measurement |
US7038398B1 (en) * | 1997-08-26 | 2006-05-02 | Color Kinetics, Incorporated | Kinetic illumination system and methods |
JP2002064223A (ja) | 2000-08-16 | 2002-02-28 | Sony Corp | 半導体発光素子の駆動回路 |
DE10134246A1 (de) | 2001-07-18 | 2003-02-06 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Betriebsgerät für Leuchtdioden mit temperaturabhängiger Stromregelung |
GB2369730B (en) * | 2001-08-30 | 2002-11-13 | Integrated Syst Tech Ltd | Illumination control system |
US6943505B2 (en) * | 2003-06-05 | 2005-09-13 | Infineon Technologies Ag | Driving device for a light-emitting component and a method for driving a light-emitting component |
US7183727B2 (en) * | 2003-09-23 | 2007-02-27 | Microsemi Corporation | Optical and temperature feedbacks to control display brightness |
JP4529585B2 (ja) * | 2004-08-18 | 2010-08-25 | ソニー株式会社 | 表示装置及びその制御装置 |
-
2003
- 2003-10-21 JP JP2003361169A patent/JP3984214B2/ja not_active Expired - Fee Related
-
2004
- 2004-10-13 TW TW093130976A patent/TW200518367A/zh unknown
- 2004-10-19 KR KR1020040083518A patent/KR20050038556A/ko not_active Application Discontinuation
- 2004-10-20 US US10/969,628 patent/US7248002B2/en not_active Expired - Fee Related
- 2004-10-21 CN CNA2004100822318A patent/CN1638586A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
KR20050038556A (ko) | 2005-04-27 |
CN1638586A (zh) | 2005-07-13 |
US20050082553A1 (en) | 2005-04-21 |
US7248002B2 (en) | 2007-07-24 |
JP3984214B2 (ja) | 2007-10-03 |
JP2005129598A (ja) | 2005-05-19 |
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