JPS58218054A - 情報処理装置 - Google Patents

情報処理装置

Info

Publication number
JPS58218054A
JPS58218054A JP58097832A JP9783283A JPS58218054A JP S58218054 A JPS58218054 A JP S58218054A JP 58097832 A JP58097832 A JP 58097832A JP 9783283 A JP9783283 A JP 9783283A JP S58218054 A JPS58218054 A JP S58218054A
Authority
JP
Japan
Prior art keywords
information processing
light emitting
semiconductor light
processing device
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.)
Granted
Application number
JP58097832A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6252366B2 (enrdf_load_stackoverflow
Inventor
Takeshi Maeda
武志 前田
Toshio Sugiyama
俊夫 杉山
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP58097832A priority Critical patent/JPS58218054A/ja
Publication of JPS58218054A publication Critical patent/JPS58218054A/ja
Publication of JPS6252366B2 publication Critical patent/JPS6252366B2/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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)
JP58097832A 1983-06-03 1983-06-03 情報処理装置 Granted JPS58218054A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58097832A JPS58218054A (ja) 1983-06-03 1983-06-03 情報処理装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58097832A JPS58218054A (ja) 1983-06-03 1983-06-03 情報処理装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP62131143A Division JPS6352343A (ja) 1987-05-29 1987-05-29 半導体レ−ザ光源

Publications (2)

Publication Number Publication Date
JPS58218054A true JPS58218054A (ja) 1983-12-19
JPS6252366B2 JPS6252366B2 (enrdf_load_stackoverflow) 1987-11-05

Family

ID=14202688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58097832A Granted JPS58218054A (ja) 1983-06-03 1983-06-03 情報処理装置

Country Status (1)

Country Link
JP (1) JPS58218054A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6254847A (ja) * 1985-09-03 1987-03-10 Nec Corp 光ピツクアツプ装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6254847A (ja) * 1985-09-03 1987-03-10 Nec Corp 光ピツクアツプ装置

Also Published As

Publication number Publication date
JPS6252366B2 (enrdf_load_stackoverflow) 1987-11-05

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