DE69920850T2 - Lasertreiber, Treiberverfahren und Bilderzeugungsgerät unter Verwendung desselben - Google Patents

Lasertreiber, Treiberverfahren und Bilderzeugungsgerät unter Verwendung desselben Download PDF

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Publication number
DE69920850T2
DE69920850T2 DE69920850T DE69920850T DE69920850T2 DE 69920850 T2 DE69920850 T2 DE 69920850T2 DE 69920850 T DE69920850 T DE 69920850T DE 69920850 T DE69920850 T DE 69920850T DE 69920850 T2 DE69920850 T2 DE 69920850T2
Authority
DE
Germany
Prior art keywords
current
monitoring
laser
laser emission
light
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 - Lifetime
Application number
DE69920850T
Other languages
German (de)
English (en)
Other versions
DE69920850D1 (de
Inventor
Yuichi Ohta-ku Seki
Takashi Ohta-ku Nakahara
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.)
Canon Inc
Original Assignee
Canon 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
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of DE69920850D1 publication Critical patent/DE69920850D1/de
Publication of DE69920850T2 publication Critical patent/DE69920850T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
    • 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
    • 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
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
    • H01S5/06832—Stabilising during amplitude modulation
    • 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
    • H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
    • H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Laser Beam Printer (AREA)
  • Semiconductor Lasers (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Fax Reproducing Arrangements (AREA)
DE69920850T 1998-11-25 1999-11-23 Lasertreiber, Treiberverfahren und Bilderzeugungsgerät unter Verwendung desselben Expired - Lifetime DE69920850T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP33445698 1998-11-25
JP33445698 1998-11-25
JP11328281A JP2000218865A (ja) 1998-11-25 1999-11-18 レ―ザ駆動装置とその駆動方法及びそれを用いた画像形成装置
JP32828199 1999-11-18

Publications (2)

Publication Number Publication Date
DE69920850D1 DE69920850D1 (de) 2004-11-11
DE69920850T2 true DE69920850T2 (de) 2005-02-10

Family

ID=26572811

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69920850T Expired - Lifetime DE69920850T2 (de) 1998-11-25 1999-11-23 Lasertreiber, Treiberverfahren und Bilderzeugungsgerät unter Verwendung desselben

Country Status (4)

Country Link
US (1) US6560256B1 (https=)
EP (1) EP1005121B1 (https=)
JP (1) JP2000218865A (https=)
DE (1) DE69920850T2 (https=)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6330324B1 (en) * 1997-12-09 2001-12-11 Sbc Technology Resources, Inc. Geographical call routing for a non-emergency calling service
JP2001244555A (ja) * 2000-03-01 2001-09-07 Pioneer Electronic Corp 自動電力制御回路
US6801556B2 (en) * 2001-11-09 2004-10-05 Agere Systems Inc. Optical source driver with output load detection circuit
US7022960B2 (en) * 2002-02-12 2006-04-04 Konica Corporation Photographic film image reading apparatus with film density detection
DE10229234A1 (de) * 2002-06-28 2004-02-12 Deutsche Thomson-Brandt Gmbh Eigensicherer Pickup für Wiedergabe- oder Aufzeichnungsgeräte unterschiedlicher optischer Aufzeichnungsträger
JP2004103839A (ja) * 2002-09-10 2004-04-02 Canon Inc 半導体マルチビームレーザ装置及び画像形成装置
EP1455520A3 (en) * 2003-03-03 2005-10-05 Canon Kabushiki Kaisha Frequency modulation apparatus and frequency modulation method
JP4308812B2 (ja) * 2005-10-28 2009-08-05 日本テキサス・インスツルメンツ株式会社 発光素子駆動装置
JP4214490B2 (ja) * 2006-08-29 2009-01-28 ブラザー工業株式会社 レーザ光の出力制御装置、並びに画像形成装置
US7891570B2 (en) * 2007-02-28 2011-02-22 Microvision, Inc. Photodiode with improved performance in ambient light
TWI367692B (en) * 2007-09-21 2012-07-01 Aussmak Optoelectronic Corp Light emitting device and control method thereof
US20110080533A1 (en) * 2009-10-06 2011-04-07 Microvision, Inc. Dithering Laser Drive Apparatus
US8630158B2 (en) * 2010-06-13 2014-01-14 Mediatek Singapore Pte. Ltd. Method for reducing a number of input terminals of an automatic power control circuit, and associated automatic power control circuit
JP5818495B2 (ja) 2011-04-21 2015-11-18 キヤノン株式会社 画像形成装置
JP6178641B2 (ja) 2013-06-28 2017-08-09 キヤノン株式会社 光走査装置及び画像形成装置
US10496004B2 (en) 2015-08-20 2019-12-03 Canon Kabushiki Kaisha Image forming apparatus with current-controlled light emitting element
JP6609144B2 (ja) 2015-09-10 2019-11-20 キヤノン株式会社 光走査装置
JP6671931B2 (ja) 2015-11-16 2020-03-25 キヤノン株式会社 画像形成装置
JP2017219714A (ja) 2016-06-08 2017-12-14 キヤノン株式会社 光走査装置
JP6976695B2 (ja) * 2017-03-08 2021-12-08 株式会社東芝 発光基板、プリントヘッドおよび画像形成装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56140477A (en) * 1980-04-02 1981-11-02 Ricoh Co Ltd Laser driving control system
US4985896A (en) 1985-03-29 1991-01-15 Canon Kabushiki Kaisha Laser driving device
JP2644722B2 (ja) 1985-03-29 1997-08-25 キヤノン株式会社 画像形成装置
JPS62227667A (ja) 1986-03-31 1987-10-06 Canon Inc レ−ザ駆動制御装置
JPS6446724A (en) 1987-08-17 1989-02-21 Canon Kk Image recorder
JPH06103765B2 (ja) * 1987-10-30 1994-12-14 日本電気株式会社 半導体レーザバイアス電流制御方式
DE69132464T2 (de) * 1990-07-05 2001-05-10 Canon K.K., Tokio/Tokyo Bilderzeugungsgerät und zugehörige Schaltvorrichtung für Konstantstromschaltung
US5504517A (en) 1991-04-04 1996-04-02 Canon Kabushiki Kaisha Laser scanner control circuit which is used in image forming apparatus and driver IC for use in such a circuit
JP3168710B2 (ja) 1992-07-17 2001-05-21 松下電器産業株式会社 パワー制御回路を備えたレーザアレイ
US5822343A (en) * 1994-08-26 1998-10-13 Psc Inc. Operating and control system for lasers useful in bar code scanners
JPH08116114A (ja) 1994-10-17 1996-05-07 Fuji Xerox Co Ltd 光量制御装置
US5726437A (en) * 1994-10-27 1998-03-10 Fuji Xerox Co., Ltd. Light intensity control device
JP3677915B2 (ja) 1997-01-22 2005-08-03 富士ゼロックス株式会社 光量制御装置
JP4235275B2 (ja) * 1998-01-09 2009-03-11 キヤノン株式会社 画像形成装置
US6055252A (en) * 1998-09-10 2000-04-25 Photonic Solutions, Inc. Fiberoptic transmitter using thermistor to maintain stable operating conditions over a range of temperature
JP4148485B2 (ja) * 1998-10-05 2008-09-10 キヤノン株式会社 画像形成装置、及び複写機

Also Published As

Publication number Publication date
EP1005121B1 (en) 2004-10-06
DE69920850D1 (de) 2004-11-11
JP2000218865A (ja) 2000-08-08
EP1005121A2 (en) 2000-05-31
US6560256B1 (en) 2003-05-06
EP1005121A3 (en) 2002-10-16

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