JPS6343819B2 - - Google Patents

Info

Publication number
JPS6343819B2
JPS6343819B2 JP57040601A JP4060182A JPS6343819B2 JP S6343819 B2 JPS6343819 B2 JP S6343819B2 JP 57040601 A JP57040601 A JP 57040601A JP 4060182 A JP4060182 A JP 4060182A JP S6343819 B2 JPS6343819 B2 JP S6343819B2
Authority
JP
Japan
Prior art keywords
output
output level
signal
laser oscillator
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
Application number
JP57040601A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58158051A (ja
Inventor
Masafumi Yokota
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co Ltd
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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP57040601A priority Critical patent/JPS58158051A/ja
Priority to US06/388,172 priority patent/US4516242A/en
Priority to NL8202436A priority patent/NL8202436A/nl
Publication of JPS58158051A publication Critical patent/JPS58158051A/ja
Publication of JPS6343819B2 publication Critical patent/JPS6343819B2/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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)
JP57040601A 1981-06-18 1982-03-15 光学的記録再生装置 Granted JPS58158051A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP57040601A JPS58158051A (ja) 1982-03-15 1982-03-15 光学的記録再生装置
US06/388,172 US4516242A (en) 1981-06-18 1982-06-14 Output stabilizing device
NL8202436A NL8202436A (nl) 1981-06-18 1982-06-16 Uitgangsstabilisatie-inrichting.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57040601A JPS58158051A (ja) 1982-03-15 1982-03-15 光学的記録再生装置

Publications (2)

Publication Number Publication Date
JPS58158051A JPS58158051A (ja) 1983-09-20
JPS6343819B2 true JPS6343819B2 (de) 1988-09-01

Family

ID=12585028

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57040601A Granted JPS58158051A (ja) 1981-06-18 1982-03-15 光学的記録再生装置

Country Status (1)

Country Link
JP (1) JPS58158051A (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0626274B2 (ja) * 1984-07-05 1994-04-06 松下電器産業株式会社 半導体レ−ザ駆動回路
JPH0626275B2 (ja) * 1984-08-02 1994-04-06 松下電器産業株式会社 半導体レ−ザ駆動回路
JPS61165835A (ja) * 1985-01-17 1986-07-26 Olympus Optical Co Ltd 光出力安定化装置
JPH0799590B2 (ja) * 1985-10-07 1995-10-25 オリンパス光学工業株式会社 光出力自動制御装置
JP2512869B2 (ja) * 1985-12-25 1996-07-03 富士ゼロックス株式会社 発光素子出力制御装置
JPH0731824B2 (ja) * 1986-01-21 1995-04-10 松下電器産業株式会社 半導体レ−ザ駆動回路
JPS62203393A (ja) * 1986-03-04 1987-09-08 Citizen Watch Co Ltd レ−ザ−ダイオ−ド光出力安定化回路
JP2631646B2 (ja) * 1986-04-16 1997-07-16 株式会社リコー 半導体レーザ素子の駆動制御方法
JPH0827950B2 (ja) * 1986-10-20 1996-03-21 オリンパス光学工業株式会社 光学的情報記録再生装置のレ−ザコントロ−ル回路
JPH0323819U (de) * 1989-07-19 1991-03-12

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5129821A (de) * 1974-09-06 1976-03-13 Mitsubishi Electric Corp
JPS54130102A (en) * 1978-03-16 1979-10-09 Philips Nv Method of writing information* recording carrier* recorded record carrier* and information writing and reading device
JPS55122240A (en) * 1979-03-07 1980-09-19 Matsushita Electric Ind Co Ltd Optical recording and reproducing device
JPS55140283A (en) * 1979-04-18 1980-11-01 Mitsubishi Electric Corp Pulse modulator circuit for laser diode
JPS5840878A (ja) * 1981-09-04 1983-03-09 Hitachi Ltd ディジタル光ディスク用半導体レーザの駆動装置
JPS5894143A (ja) * 1981-12-01 1983-06-04 Matsushita Electric Ind Co Ltd 光学的記録再生装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5129821A (de) * 1974-09-06 1976-03-13 Mitsubishi Electric Corp
JPS54130102A (en) * 1978-03-16 1979-10-09 Philips Nv Method of writing information* recording carrier* recorded record carrier* and information writing and reading device
JPS55122240A (en) * 1979-03-07 1980-09-19 Matsushita Electric Ind Co Ltd Optical recording and reproducing device
JPS55140283A (en) * 1979-04-18 1980-11-01 Mitsubishi Electric Corp Pulse modulator circuit for laser diode
JPS5840878A (ja) * 1981-09-04 1983-03-09 Hitachi Ltd ディジタル光ディスク用半導体レーザの駆動装置
JPS5894143A (ja) * 1981-12-01 1983-06-04 Matsushita Electric Ind Co Ltd 光学的記録再生装置

Also Published As

Publication number Publication date
JPS58158051A (ja) 1983-09-20

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