JPS56159847A - Optical recording and reproducing device - Google Patents

Optical recording and reproducing device

Info

Publication number
JPS56159847A
JPS56159847A JP6456180A JP6456180A JPS56159847A JP S56159847 A JPS56159847 A JP S56159847A JP 6456180 A JP6456180 A JP 6456180A JP 6456180 A JP6456180 A JP 6456180A JP S56159847 A JPS56159847 A JP S56159847A
Authority
JP
Japan
Prior art keywords
ray
lens
disk
reflected
split
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
JP6456180A
Other languages
English (en)
Japanese (ja)
Other versions
JPS63856B2 (xx
Inventor
Toru Nakamura
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 JP6456180A priority Critical patent/JPS56159847A/ja
Publication of JPS56159847A publication Critical patent/JPS56159847A/ja
Publication of JPS63856B2 publication Critical patent/JPS63856B2/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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
JP6456180A 1980-05-14 1980-05-14 Optical recording and reproducing device Granted JPS56159847A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6456180A JPS56159847A (en) 1980-05-14 1980-05-14 Optical recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6456180A JPS56159847A (en) 1980-05-14 1980-05-14 Optical recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS56159847A true JPS56159847A (en) 1981-12-09
JPS63856B2 JPS63856B2 (xx) 1988-01-08

Family

ID=13261760

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6456180A Granted JPS56159847A (en) 1980-05-14 1980-05-14 Optical recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS56159847A (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3335142A1 (de) * 1982-09-28 1984-03-29 Sony Corp., Tokio/Tokyo Optische wiedergabeeinrichtung mit einer halbleiter-laserlichtquelle
JPS63244336A (ja) * 1987-03-31 1988-10-11 Canon Inc 光学的記録再生装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3335142A1 (de) * 1982-09-28 1984-03-29 Sony Corp., Tokio/Tokyo Optische wiedergabeeinrichtung mit einer halbleiter-laserlichtquelle
JPS63244336A (ja) * 1987-03-31 1988-10-11 Canon Inc 光学的記録再生装置

Also Published As

Publication number Publication date
JPS63856B2 (xx) 1988-01-08

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