JPS58177534A - 光学的記録装置 - Google Patents

光学的記録装置

Info

Publication number
JPS58177534A
JPS58177534A JP57058846A JP5884682A JPS58177534A JP S58177534 A JPS58177534 A JP S58177534A JP 57058846 A JP57058846 A JP 57058846A JP 5884682 A JP5884682 A JP 5884682A JP S58177534 A JPS58177534 A JP S58177534A
Authority
JP
Japan
Prior art keywords
output
temperature
recording
low
signal
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.)
Granted
Application number
JP57058846A
Other languages
English (en)
Japanese (ja)
Other versions
JPS644256B2 (enrdf_load_stackoverflow
Inventor
Shunji Kanamaru
金丸　俊次
Mutsuo Takenaga
睦生 竹永
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 true JPS58177534A (ja) 1983-10-18
JPS644256B2 JPS644256B2 (enrdf_load_stackoverflow) 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 (enrdf_load_stackoverflow)

Cited By (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
JPS6157050A (ja) * 1984-08-28 1986-03-22 Sharp Corp 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
US4894816A (en) * 1987-02-12 1990-01-16 Hitachi, Ltd. Optical information recording apparatus
JPH02103741A (ja) * 1988-10-11 1990-04-16 Canon Inc 光学的情報記録再生装置
US5249172A (en) * 1991-03-19 1993-09-28 Matsushita Electric Industrial Co., Ltd. Write laser power setting responsive to a series of written test signals having two frequency components
EP0614176A1 (en) * 1993-03-04 1994-09-07 Nikon Corporation Optical disk reproducing method and apparatus
JPH1064098A (ja) * 1997-07-14 1998-03-06 Canon Inc 光学的情報記録再生装置
WO2004023461A1 (ja) * 2002-08-30 2004-03-18 Fujitsu Limited 光学的記憶装置及び光学的記録媒体の読出し方法

Cited By (12)

* 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
JPS6157050A (ja) * 1984-08-28 1986-03-22 Sharp Corp 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
US4894816A (en) * 1987-02-12 1990-01-16 Hitachi, Ltd. Optical information recording apparatus
JPH02103741A (ja) * 1988-10-11 1990-04-16 Canon Inc 光学的情報記録再生装置
US5249172A (en) * 1991-03-19 1993-09-28 Matsushita Electric Industrial Co., Ltd. Write laser power setting responsive to a series of written test signals having two frequency components
EP0614176A1 (en) * 1993-03-04 1994-09-07 Nikon Corporation Optical disk reproducing method and apparatus
JPH1064098A (ja) * 1997-07-14 1998-03-06 Canon Inc 光学的情報記録再生装置
WO2004023461A1 (ja) * 2002-08-30 2004-03-18 Fujitsu Limited 光学的記憶装置及び光学的記録媒体の読出し方法
US7283445B2 (en) 2002-08-30 2007-10-16 Fujitsu Limited Optical storage device and reading method for optical storage medium

Also Published As

Publication number Publication date
JPS644256B2 (enrdf_load_stackoverflow) 1989-01-25

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