JPS6232532B2 - - Google Patents

Info

Publication number
JPS6232532B2
JPS6232532B2 JP55066138A JP6613880A JPS6232532B2 JP S6232532 B2 JPS6232532 B2 JP S6232532B2 JP 55066138 A JP55066138 A JP 55066138A JP 6613880 A JP6613880 A JP 6613880A JP S6232532 B2 JPS6232532 B2 JP S6232532B2
Authority
JP
Japan
Prior art keywords
light
lens
optical
semiconductor laser
aperture
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
JP55066138A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56163533A (en
Inventor
Tomio Yoshida
Akifumi Nakada
Michoshi Nagashima
Shunji Harikae
Toshio Sato
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 JP6613880A priority Critical patent/JPS56163533A/ja
Publication of JPS56163533A publication Critical patent/JPS56163533A/ja
Publication of JPS6232532B2 publication Critical patent/JPS6232532B2/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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
JP6613880A 1980-05-19 1980-05-19 Optical recorder and reproducer Granted JPS56163533A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6613880A JPS56163533A (en) 1980-05-19 1980-05-19 Optical recorder and reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6613880A JPS56163533A (en) 1980-05-19 1980-05-19 Optical recorder and reproducer

Publications (2)

Publication Number Publication Date
JPS56163533A JPS56163533A (en) 1981-12-16
JPS6232532B2 true JPS6232532B2 (en]) 1987-07-15

Family

ID=13307195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6613880A Granted JPS56163533A (en) 1980-05-19 1980-05-19 Optical recorder and reproducer

Country Status (1)

Country Link
JP (1) JPS56163533A (en])

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1208466A (en) * 1982-07-28 1986-07-29 Donald R. Scifres Beam collimation and focusing of multi-emitter or broad emitter lasers
JPH0743469B2 (ja) * 1984-04-18 1995-05-15 ソニー株式会社 記録再生光学系の製造方法
JPS6118918A (ja) * 1984-07-05 1986-01-27 Ricoh Co Ltd ビ−ム整形光学系
JPH0675138B2 (ja) * 1985-02-26 1994-09-21 株式会社リコー プリズムビ−ム整形光学系
JP2538192B2 (ja) * 1994-10-03 1996-09-25 株式会社リコー 光ディスク装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50136051A (en]) * 1974-04-15 1975-10-28
JPS5371846A (en) * 1976-12-08 1978-06-26 Mansei Kogyo Kk Optics to obtain equal direction spot from various direction light beam
JPS53100844A (en) * 1977-02-15 1978-09-02 Canon Inc Beam shaping optical system
JPS5441A (en) * 1977-06-03 1979-01-05 Kansai Paint Co Ltd Coating method
JPS5543577A (en) * 1978-09-21 1980-03-27 Canon Inc Light source device

Also Published As

Publication number Publication date
JPS56163533A (en) 1981-12-16

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