JPH0512773B2 - - Google Patents

Info

Publication number
JPH0512773B2
JPH0512773B2 JP58070351A JP7035183A JPH0512773B2 JP H0512773 B2 JPH0512773 B2 JP H0512773B2 JP 58070351 A JP58070351 A JP 58070351A JP 7035183 A JP7035183 A JP 7035183A JP H0512773 B2 JPH0512773 B2 JP H0512773B2
Authority
JP
Japan
Prior art keywords
prism
angle
collimator lens
total reflection
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
JP58070351A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59195347A (ja
Inventor
Kanji Nishii
Akifumi Nakada
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 JP58070351A priority Critical patent/JPS59195347A/ja
Publication of JPS59195347A publication Critical patent/JPS59195347A/ja
Publication of JPH0512773B2 publication Critical patent/JPH0512773B2/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
    • 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
    • G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
JP58070351A 1983-04-20 1983-04-20 光学ヘツド Granted JPS59195347A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58070351A JPS59195347A (ja) 1983-04-20 1983-04-20 光学ヘツド

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58070351A JPS59195347A (ja) 1983-04-20 1983-04-20 光学ヘツド

Publications (2)

Publication Number Publication Date
JPS59195347A JPS59195347A (ja) 1984-11-06
JPH0512773B2 true JPH0512773B2 (zh) 1993-02-18

Family

ID=13428917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58070351A Granted JPS59195347A (ja) 1983-04-20 1983-04-20 光学ヘツド

Country Status (1)

Country Link
JP (1) JPS59195347A (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4759616A (en) * 1985-08-26 1988-07-26 Eastman Kodak Company Method and apparatus for anamorphically shaping and deflecting electromagnetic beams
EP0465175B1 (en) * 1990-06-29 1997-08-20 Kabushiki Kaisha Toshiba Optical head
EP1964220A1 (en) * 2005-12-23 2008-09-03 Carl Zeiss Laser Optics GmbH Optical system and method for shaping a profile of a laser beam

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5511601B2 (zh) * 1975-05-19 1980-03-26
JPS57100632A (en) * 1980-12-12 1982-06-22 Matsushita Electric Ind Co Ltd Optical system reproducer
JPS57104915A (en) * 1980-12-22 1982-06-30 Ricoh Co Ltd Laser recorder

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6114012Y2 (zh) * 1978-06-12 1986-05-01

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5511601B2 (zh) * 1975-05-19 1980-03-26
JPS57100632A (en) * 1980-12-12 1982-06-22 Matsushita Electric Ind Co Ltd Optical system reproducer
JPS57104915A (en) * 1980-12-22 1982-06-30 Ricoh Co Ltd Laser recorder

Also Published As

Publication number Publication date
JPS59195347A (ja) 1984-11-06

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