DE69019281T2 - Apparat zur Steuerung der Lichtmenge. - Google Patents

Apparat zur Steuerung der Lichtmenge.

Info

Publication number
DE69019281T2
DE69019281T2 DE69019281T DE69019281T DE69019281T2 DE 69019281 T2 DE69019281 T2 DE 69019281T2 DE 69019281 T DE69019281 T DE 69019281T DE 69019281 T DE69019281 T DE 69019281T DE 69019281 T2 DE69019281 T2 DE 69019281T2
Authority
DE
Germany
Prior art keywords
controlling
light
amount
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
DE69019281T
Other languages
English (en)
Other versions
DE69019281D1 (de
Inventor
Toshihiko Inuyama
Junichi Kimizuka
Makoto Abe
Akihisa Kusano
Kaoru Sato
Kazuhiko Okazawa
Masanori Ishizu
Toshiyuki Ito
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
Publication of DE69019281D1 publication Critical patent/DE69019281D1/de
Application granted granted Critical
Publication of DE69019281T2 publication Critical patent/DE69019281T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
    • H04N1/4005—Circuits exciting or modulating particular heads for reproducing continuous tone value scales with regulating circuits, e.g. dependent upon ambient temperature or feedback control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
    • H04N1/40037—Circuits exciting or modulating particular heads for reproducing continuous tone value scales the reproducing element being a laser
DE69019281T 1989-09-26 1990-09-25 Apparat zur Steuerung der Lichtmenge. Expired - Fee Related DE69019281T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1247929A JP2905229B2 (ja) 1989-09-26 1989-09-26 光ビーム駆動装置

Publications (2)

Publication Number Publication Date
DE69019281D1 DE69019281D1 (de) 1995-06-14
DE69019281T2 true DE69019281T2 (de) 1995-10-12

Family

ID=17170653

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69019281T Expired - Fee Related DE69019281T2 (de) 1989-09-26 1990-09-25 Apparat zur Steuerung der Lichtmenge.

Country Status (4)

Country Link
US (1) US5151910A (de)
EP (1) EP0420573B1 (de)
JP (1) JP2905229B2 (de)
DE (1) DE69019281T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679816A5 (de) * 1990-02-15 1992-04-15 Ingbuero Fuer Laser Technologi
JPH0595150A (ja) * 1991-06-28 1993-04-16 Toshiba Corp レーザ制御回路
DE69225664T2 (de) * 1991-10-08 1998-12-03 Canon Kk Verfahren zum kontrollieren eines Bilderzeugungsgeräts
JP3255295B2 (ja) * 1991-10-14 2002-02-12 ブラザー工業株式会社 画像露光装置
US5237579A (en) * 1992-01-22 1993-08-17 Ricoh Co. Ltd. Semiconductor laser controller using optical-electronic negative feedback loop
US5442510A (en) * 1993-06-23 1995-08-15 The United States Of America As Represented By The Secretary Of The Navy Control system for tracking nonlinear systems
US5473360A (en) * 1993-12-27 1995-12-05 Xerox Corporation Adaptive method for high speed detection of position and intensity
US5604757A (en) * 1994-05-10 1997-02-18 E-Tek Dynamics, Inc. Multichannel, programmable laser diode power supply, stabilizer and controller
ATE352945T1 (de) * 1998-07-20 2007-02-15 Maurer Electronics Gmbh Verfahren zum eingravieren von bildern mittels strahlung in eine strahlungsempfindliche schicht, insbesondere zum lasergravieren
US6940562B2 (en) * 2000-04-20 2005-09-06 Canon Kabushiki Kaisha Controller for remotely controlling two or more controlled devices
KR100555728B1 (ko) * 2003-10-16 2006-03-03 삼성전자주식회사 레이저 스캐닝 유닛의 광파워 밸런스 조정방법
JP4535498B2 (ja) * 2005-01-20 2010-09-01 株式会社リコー 光走査装置及び画像形成装置
JP4534829B2 (ja) * 2005-03-24 2010-09-01 富士ゼロックス株式会社 光量制御装置
US7905038B2 (en) * 2006-12-27 2011-03-15 Coff Brian R Container with integrated media display
JP4582199B2 (ja) * 2008-06-02 2010-11-17 ブラザー工業株式会社 光出力装置およびその装置を備えた画像形成装置
JP5789567B2 (ja) * 2012-06-25 2015-10-07 京セラドキュメントソリューションズ株式会社 光ビーム制御装置及び画像形成装置
JP6425475B2 (ja) 2014-09-10 2018-11-21 キヤノン株式会社 電源の機械式スイッチを制御可能な情報処理装置およびその制御方法、並びにプログラム
JP6914010B2 (ja) * 2016-05-25 2021-08-04 キヤノン株式会社 駆動装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146069A (ja) * 1983-02-08 1984-08-21 Canon Inc 光源安定化装置
US4624547A (en) * 1983-06-28 1986-11-25 Canon Kabushiki Kaisha Image forming apparatus
US4985896A (en) * 1985-03-29 1991-01-15 Canon Kabushiki Kaisha Laser driving device
US4751523A (en) * 1986-06-30 1988-06-14 Xerox Corporation Laser scanner power compensation circuit
US4890288A (en) * 1986-08-27 1989-12-26 Canon Kabushiki Kaisha Light quantity control device
US4907236A (en) * 1986-09-19 1990-03-06 Ricoh Company, Ltd. Method of controlling the quantity of light in a selected range
JPS63250966A (ja) * 1987-04-07 1988-10-18 Asahi Optical Co Ltd 半導体レ−ザの光出力制御装置
DE3854653T2 (de) * 1987-06-04 1996-03-21 Dainippon Screen Mfg Gerät zur Stabilisierung der Lichtmenge einer Fluoreszenzlampe.
US4926433A (en) * 1987-10-19 1990-05-15 Ricoh Company, Ltd. Semiconductor laser unit
US4899344A (en) * 1987-12-07 1990-02-06 Ricoh Co., Ltd. Semiconductor laser control apparatus
US4899348A (en) * 1987-12-29 1990-02-06 Ricoh Company, Ltd. Method and apparatus for controlling optical output of laser light source
JP2624788B2 (ja) * 1988-07-22 1997-06-25 シャープ株式会社 半導体レーザ駆動装置
US4972210A (en) * 1989-06-28 1990-11-20 Eastman Kodak Company Driver for a diode laser

Also Published As

Publication number Publication date
JPH03110583A (ja) 1991-05-10
EP0420573A3 (en) 1991-08-07
JP2905229B2 (ja) 1999-06-14
EP0420573B1 (de) 1995-05-10
DE69019281D1 (de) 1995-06-14
EP0420573A2 (de) 1991-04-03
US5151910A (en) 1992-09-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee