JPH0555875B2 - - Google Patents

Info

Publication number
JPH0555875B2
JPH0555875B2 JP58020737A JP2073783A JPH0555875B2 JP H0555875 B2 JPH0555875 B2 JP H0555875B2 JP 58020737 A JP58020737 A JP 58020737A JP 2073783 A JP2073783 A JP 2073783A JP H0555875 B2 JPH0555875 B2 JP H0555875B2
Authority
JP
Japan
Prior art keywords
signal
circuit
laser
light
semiconductor laser
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
JP58020737A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59146456A (ja
Inventor
Yukihide Ushio
Junichi Kimizuka
Kaoru Seto
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
Priority to JP58020737A priority Critical patent/JPS59146456A/ja
Publication of JPS59146456A publication Critical patent/JPS59146456A/ja
Publication of JPH0555875B2 publication Critical patent/JPH0555875B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)
  • Laser Beam Printer (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Dot-Matrix Printers And Others (AREA)
JP58020737A 1983-02-10 1983-02-10 光量制御装置 Granted JPS59146456A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58020737A JPS59146456A (ja) 1983-02-10 1983-02-10 光量制御装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58020737A JPS59146456A (ja) 1983-02-10 1983-02-10 光量制御装置

Publications (2)

Publication Number Publication Date
JPS59146456A JPS59146456A (ja) 1984-08-22
JPH0555875B2 true JPH0555875B2 (de) 1993-08-18

Family

ID=12035504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58020737A Granted JPS59146456A (ja) 1983-02-10 1983-02-10 光量制御装置

Country Status (1)

Country Link
JP (1) JPS59146456A (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6223070A (ja) * 1985-07-24 1987-01-31 Mita Ind Co Ltd 半導体レ−ザ制御装置
JPS62235974A (ja) * 1986-04-07 1987-10-16 Canon Inc 光量制御装置
JP2510548B2 (ja) * 1987-01-19 1996-06-26 キヤノン株式会社 画像形成装置
JP2632826B2 (ja) * 1987-01-19 1997-07-23 キヤノン株式会社 画像形成装置
JP2697836B2 (ja) * 1987-05-09 1998-01-14 株式会社リコー レーザプリンタのレーザパワー制御装置
JPH0782204B2 (ja) * 1987-10-28 1995-09-06 富士写真フイルム株式会社 画像露光装置
JP2692984B2 (ja) * 1989-09-19 1997-12-17 キヤノン株式会社 レーザ記録装置
TW525157B (en) * 2000-10-13 2003-03-21 Sony Corp Current generation circuit and method
US7724792B2 (en) * 2006-03-03 2010-05-25 Mindspeed Technologies, Inc. Driving laser diodes with immunity to temperature changes, aging, and other effects

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53123133A (en) * 1977-04-02 1978-10-27 Ricoh Co Ltd Electrostatic copying machine of transfer type
JPS5498624A (en) * 1977-12-27 1979-08-03 Ricoh Co Ltd Exposure controller of copier
JPS54135552A (en) * 1978-04-12 1979-10-20 Ricoh Co Ltd Laser recorder
JPS56106259A (en) * 1980-01-25 1981-08-24 Canon Inc Control device for quantity of light
JPS56123360A (en) * 1980-03-03 1981-09-28 Matsushita Electric Ind Co Ltd Solder plating method
JPS575054A (en) * 1980-06-12 1982-01-11 Canon Inc Image formation controller
JPS5788461A (en) * 1980-11-22 1982-06-02 Canon Inc Picture formation device
JPS57124362A (en) * 1981-01-26 1982-08-03 Ricoh Co Ltd Electronic photographic copy machine
JPS57148771A (en) * 1981-03-10 1982-09-14 Fuji Xerox Co Ltd Controller for copy density of copying machine
JPS57211164A (en) * 1981-06-22 1982-12-24 Ricoh Co Ltd Power controlling method for exposure lamp and fixing heater in copying device
JPS5814163A (ja) * 1981-07-17 1983-01-26 Fuji Xerox Co Ltd 複写機の露光調整装置

Also Published As

Publication number Publication date
JPS59146456A (ja) 1984-08-22

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