JPS644256B2 - - Google Patents

Info

Publication number
JPS644256B2
JPS644256B2 JP57058846A JP5884682A JPS644256B2 JP S644256 B2 JPS644256 B2 JP S644256B2 JP 57058846 A JP57058846 A JP 57058846A JP 5884682 A JP5884682 A JP 5884682A JP S644256 B2 JPS644256 B2 JP S644256B2
Authority
JP
Japan
Prior art keywords
recording
light beam
disk
signal
temperature
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
JP57058846A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58177534A (ja
Inventor
Shunji Kanamaru
Mutsuo Takenaga
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP57058846A priority Critical patent/JPS58177534A/ja
Publication of JPS58177534A publication Critical patent/JPS58177534A/ja
Publication of JPS644256B2 publication Critical patent/JPS644256B2/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)
JP57058846A 1982-04-08 1982-04-08 光学的記録装置 Granted JPS58177534A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57058846A JPS58177534A (ja) 1982-04-08 1982-04-08 光学的記録装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57058846A JPS58177534A (ja) 1982-04-08 1982-04-08 光学的記録装置

Publications (2)

Publication Number Publication Date
JPS58177534A JPS58177534A (ja) 1983-10-18
JPS644256B2 true JPS644256B2 (OSRAM) 1989-01-25

Family

ID=13096026

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57058846A Granted JPS58177534A (ja) 1982-04-08 1982-04-08 光学的記録装置

Country Status (1)

Country Link
JP (1) JPS58177534A (OSRAM)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59140647A (ja) * 1983-01-31 1984-08-13 Canon Inc 光学的情報記録再生装置
JPS6089516U (ja) * 1983-11-24 1985-06-19 リンナイ株式会社 調理器
JPH0697510B2 (ja) * 1984-08-28 1994-11-30 シャープ株式会社 光記憶装置
US4710631A (en) * 1984-08-28 1987-12-01 Fuji Photo Film Co., Ltd. Temperature compensation for a semiconductor light source used for exposure of light sensitive material
JPS63124235A (ja) * 1986-11-13 1988-05-27 Matsushita Electric Ind Co Ltd 光学式記録再生装置
KR910003460B1 (ko) * 1987-02-12 1991-05-31 가부시기가이샤 히다찌세이사꾸쇼 광학식 정보기록 장치
JP2812441B2 (ja) * 1988-10-11 1998-10-22 キヤノン株式会社 光学的情報記録再生装置
JP2653259B2 (ja) * 1991-03-19 1997-09-17 松下電器産業株式会社 記録レーザ強度設定方法及びレーザ記録装置
JPH06259799A (ja) * 1993-03-04 1994-09-16 Nikon Corp 光ディスクの再生方法及び再生装置
JPH1064098A (ja) * 1997-07-14 1998-03-06 Canon Inc 光学的情報記録再生装置
JP4115449B2 (ja) 2002-08-30 2008-07-09 富士通株式会社 光学的記憶装置及び光学的記憶媒体の読出し方法

Also Published As

Publication number Publication date
JPS58177534A (ja) 1983-10-18

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