JPH0213372B2 - - Google Patents

Info

Publication number
JPH0213372B2
JPH0213372B2 JP55168277A JP16827780A JPH0213372B2 JP H0213372 B2 JPH0213372 B2 JP H0213372B2 JP 55168277 A JP55168277 A JP 55168277A JP 16827780 A JP16827780 A JP 16827780A JP H0213372 B2 JPH0213372 B2 JP H0213372B2
Authority
JP
Japan
Prior art keywords
semiconductor laser
laser
recording
output
optical
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
JP55168277A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5792438A (en
Inventor
Michiharu Abe
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP55168277A priority Critical patent/JPS5792438A/ja
Publication of JPS5792438A publication Critical patent/JPS5792438A/ja
Publication of JPH0213372B2 publication Critical patent/JPH0213372B2/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 Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)
JP55168277A 1980-11-28 1980-11-28 Recording method by laser beam Granted JPS5792438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55168277A JPS5792438A (en) 1980-11-28 1980-11-28 Recording method by laser beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55168277A JPS5792438A (en) 1980-11-28 1980-11-28 Recording method by laser beam

Publications (2)

Publication Number Publication Date
JPS5792438A JPS5792438A (en) 1982-06-09
JPH0213372B2 true JPH0213372B2 (enrdf_load_stackoverflow) 1990-04-04

Family

ID=15865029

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55168277A Granted JPS5792438A (en) 1980-11-28 1980-11-28 Recording method by laser beam

Country Status (1)

Country Link
JP (1) JPS5792438A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5961984A (ja) * 1982-09-30 1984-04-09 Sharp Corp 半導体レ−ザ装置
JPS60145537A (ja) * 1984-01-10 1985-08-01 Nec Corp 光学式情報記録方式及びその装置
JPH0460921A (ja) * 1990-06-27 1992-02-26 Nippon Columbia Co Ltd 光学的記録再生装置
US5798993A (en) * 1995-05-29 1998-08-25 Nec Corporation System and method for simultaneously verifying optical data writing and optical data writing medium for use therein
US6664526B2 (en) 2000-11-15 2003-12-16 Ricoh Company, Ltd. Optical information recording employing improved recording power control scheme

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5365116A (en) * 1976-11-24 1978-06-10 Tokyo Shibaura Electric Co Serial printer
JPS5553776A (en) * 1978-10-13 1980-04-19 Nec Corp Optical information reading method

Also Published As

Publication number Publication date
JPS5792438A (en) 1982-06-09

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