JPS631652B2 - - Google Patents

Info

Publication number
JPS631652B2
JPS631652B2 JP58200967A JP20096783A JPS631652B2 JP S631652 B2 JPS631652 B2 JP S631652B2 JP 58200967 A JP58200967 A JP 58200967A JP 20096783 A JP20096783 A JP 20096783A JP S631652 B2 JPS631652 B2 JP S631652B2
Authority
JP
Japan
Prior art keywords
prism
semiconductor laser
laser element
light beam
light
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
JP58200967A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5998329A (ja
Inventor
Masahiro Oshima
Seiji Yonezawa
Toshio Sugyama
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 JP58200967A priority Critical patent/JPS5998329A/ja
Publication of JPS5998329A publication Critical patent/JPS5998329A/ja
Publication of JPS631652B2 publication Critical patent/JPS631652B2/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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1398—Means for shaping the cross-section of the beam, e.g. into circular or elliptical cross-section
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1359—Single prisms

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
JP58200967A 1983-10-28 1983-10-28 光情報処理装置 Granted JPS5998329A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58200967A JPS5998329A (ja) 1983-10-28 1983-10-28 光情報処理装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58200967A JPS5998329A (ja) 1983-10-28 1983-10-28 光情報処理装置

Publications (2)

Publication Number Publication Date
JPS5998329A JPS5998329A (ja) 1984-06-06
JPS631652B2 true JPS631652B2 (is") 1988-01-13

Family

ID=16433291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58200967A Granted JPS5998329A (ja) 1983-10-28 1983-10-28 光情報処理装置

Country Status (1)

Country Link
JP (1) JPS5998329A (is")

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6289018A (ja) * 1985-10-15 1987-04-23 Konishiroku Photo Ind Co Ltd ビ−ム整形光学系

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3877779A (en) * 1971-09-22 1975-04-15 Dermot John Pierse Dual magnification microscope
NL176314C (nl) * 1974-02-15 1985-03-18 Philips Nv Inrichting voor het uitlezen van een registratiedrager waarop informatie is aangebracht in een optisch uitleesbare structuur.
JPS50147341A (is") * 1974-05-15 1975-11-26
US3983317A (en) * 1974-12-09 1976-09-28 Teletype Corporation Astigmatizer for laser recording and reproducing system
JPS5224542A (en) * 1975-08-20 1977-02-24 Canon Inc Optical system for shaping a beam
JPS5445156A (en) * 1977-09-16 1979-04-10 Hitachi Ltd Optical system
JPS6153775A (ja) * 1984-08-24 1986-03-17 Oki Electric Ind Co Ltd 半導体集積回路装置

Also Published As

Publication number Publication date
JPS5998329A (ja) 1984-06-06

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