JP3391784B2 - 発光素子駆動回路 - Google Patents

発光素子駆動回路

Info

Publication number
JP3391784B2
JP3391784B2 JP2002513061A JP2002513061A JP3391784B2 JP 3391784 B2 JP3391784 B2 JP 3391784B2 JP 2002513061 A JP2002513061 A JP 2002513061A JP 2002513061 A JP2002513061 A JP 2002513061A JP 3391784 B2 JP3391784 B2 JP 3391784B2
Authority
JP
Japan
Prior art keywords
fet
light emitting
emitting element
source follower
circuit
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.)
Expired - Fee Related
Application number
JP2002513061A
Other languages
English (en)
Japanese (ja)
Inventor
誠一郎 水野
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.)
Hamamatsu Photonics KK
Original Assignee
Hamamatsu Photonics KK
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 Hamamatsu Photonics KK filed Critical Hamamatsu Photonics KK
Application granted granted Critical
Publication of JP3391784B2 publication Critical patent/JP3391784B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
    • H01S5/042—Electrical excitation ; Circuits therefor
    • 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]
    • H05B45/30—Driver circuits
JP2002513061A 2000-07-19 2001-07-18 発光素子駆動回路 Expired - Fee Related JP3391784B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000-219777 2000-07-19
JP2000219777 2000-07-19
PCT/JP2001/006242 WO2002007276A1 (fr) 2000-07-19 2001-07-18 Circuit d'attaque de dispositif photoemetteur

Publications (1)

Publication Number Publication Date
JP3391784B2 true JP3391784B2 (ja) 2003-03-31

Family

ID=18714497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002513061A Expired - Fee Related JP3391784B2 (ja) 2000-07-19 2001-07-18 発光素子駆動回路

Country Status (8)

Country Link
US (1) US6563849B2 (US06563849-20030513-M00019.png)
EP (1) EP1311040B1 (US06563849-20030513-M00019.png)
JP (1) JP3391784B2 (US06563849-20030513-M00019.png)
KR (1) KR100784505B1 (US06563849-20030513-M00019.png)
CN (1) CN1316699C (US06563849-20030513-M00019.png)
AU (1) AU2001271072A1 (US06563849-20030513-M00019.png)
DE (1) DE60128812T2 (US06563849-20030513-M00019.png)
WO (1) WO2002007276A1 (US06563849-20030513-M00019.png)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003096759A1 (en) * 2001-03-30 2003-11-20 Santur Corporation High speed modulation of arrayed lasers
TW550977B (en) * 2002-02-15 2003-09-01 Ind Tech Res Inst Control circuit for driving light emitting device
JP4072047B2 (ja) * 2002-11-29 2008-04-02 松下電器産業株式会社 レーザダイオード駆動装置
JP4364664B2 (ja) * 2004-02-04 2009-11-18 シャープ株式会社 発光ダイオード駆動回路および光ファイバリンク用光送信機
US8000368B2 (en) * 2006-07-26 2011-08-16 Santur Corporation Modulated semiconductor DFB laser array with a MEMS-based RF switch
JP5509662B2 (ja) * 2009-04-13 2014-06-04 ソニー株式会社 レーザ駆動装置
GB2484535B (en) * 2010-10-15 2015-08-12 New Lighting Technology Ltd Illumination apparatus and method
KR20130012670A (ko) 2011-07-26 2013-02-05 삼성디스플레이 주식회사 백라이트 유닛 및 그것의 전류 제어 방법
WO2021242983A1 (en) 2020-05-28 2021-12-02 Leuko Labs, Inc. A method to detect white blood cells and/or white blood cell subtypes form non-invasive capillary videos

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0731823B2 (ja) 1987-04-08 1995-04-10 パイオニア株式会社 光源駆動回路
JP2994442B2 (ja) * 1990-08-30 1999-12-27 株式会社リコー 半導体レーザ制御装置
JP3146467B2 (ja) * 1992-10-21 2001-03-19 住友電気工業株式会社 半導体レーザ駆動回路
JP3725235B2 (ja) * 1996-03-29 2005-12-07 富士通株式会社 発光素子駆動回路及びこれを有する発光装置
US5898334A (en) 1997-05-12 1999-04-27 Elantec Semiconductor, Inc. Reduced output capacitance circuit for driving a grounded load in response to a stepped input
JP3405518B2 (ja) * 1998-01-29 2003-05-12 住友電気工業株式会社 半導体レーザ駆動回路
JP2000252521A (ja) * 1999-02-24 2000-09-14 Nec Corp 発光素子駆動回路

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ＨＩＲＯＳＥ ｅｔ ａｌ．，Ｌｏｗ−Ｐｏｗｅｒ ２．５−Ｇｂ／ｓ Ｓｉ−Ｂｉｐｏｌａｒ ＩＣ Ｃｈｉｐｓｅｔ ｆｏｒ Ｏｐｔｉｃａｌ Ｒｅｃｅｉｖｅｒｓ ａｎｄ Ｔｒａｎｓｍｉｔｔｅｒｓ Ｕｓｉｎｇ Ｌｏｗ−Ｖｏｌｔａｇｅ ａｎ，ＩＥＩＣＥ Ｔｒａｎｓａｃｔｉｏｎｓ ｏｎ Ｅｌｅｃｔｒｏｎｉｃｓ，日本，１９９９年，Ｖｏｌ．Ｅ８２−Ｃ，Ｎｏ．３，ｐ．５１１−５１８，特にＳｅｃｔｉｏｎ４．５

Also Published As

Publication number Publication date
EP1311040B1 (en) 2007-06-06
KR100784505B1 (ko) 2007-12-11
EP1311040A1 (en) 2003-05-14
CN1443386A (zh) 2003-09-17
CN1316699C (zh) 2007-05-16
US6563849B2 (en) 2003-05-13
DE60128812D1 (de) 2007-07-19
DE60128812T2 (de) 2008-01-31
KR20030023707A (ko) 2003-03-19
AU2001271072A1 (en) 2002-01-30
EP1311040A4 (en) 2003-08-27
US20020048298A1 (en) 2002-04-25
WO2002007276A1 (fr) 2002-01-24

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