JPS60212836A - 光学的再生装置 - Google Patents

光学的再生装置

Info

Publication number
JPS60212836A
JPS60212836A JP59069382A JP6938284A JPS60212836A JP S60212836 A JPS60212836 A JP S60212836A JP 59069382 A JP59069382 A JP 59069382A JP 6938284 A JP6938284 A JP 6938284A JP S60212836 A JPS60212836 A JP S60212836A
Authority
JP
Japan
Prior art keywords
order diffracted
diffracted light
photodetector
light
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.)
Granted
Application number
JP59069382A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0547898B2 (enExample
Inventor
Michiyoshi Nagashima
道芳 永島
Yoshiya Takemura
佳也 竹村
Kazuaki Obara
和昭 小原
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 JP59069382A priority Critical patent/JPS60212836A/ja
Publication of JPS60212836A publication Critical patent/JPS60212836A/ja
Publication of JPH0547898B2 publication Critical patent/JPH0547898B2/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)
JP59069382A 1984-04-06 1984-04-06 光学的再生装置 Granted JPS60212836A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59069382A JPS60212836A (ja) 1984-04-06 1984-04-06 光学的再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59069382A JPS60212836A (ja) 1984-04-06 1984-04-06 光学的再生装置

Publications (2)

Publication Number Publication Date
JPS60212836A true JPS60212836A (ja) 1985-10-25
JPH0547898B2 JPH0547898B2 (enExample) 1993-07-20

Family

ID=13400970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59069382A Granted JPS60212836A (ja) 1984-04-06 1984-04-06 光学的再生装置

Country Status (1)

Country Link
JP (1) JPS60212836A (enExample)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS587230U (ja) * 1981-07-03 1983-01-18 三洋電機株式会社 光学式ビデオデイスクプレ−ヤの焦点検出機構
JPS5936338A (ja) * 1982-08-24 1984-02-28 Matsushita Electric Ind Co Ltd 光デイスク記録再生方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS587230U (ja) * 1981-07-03 1983-01-18 三洋電機株式会社 光学式ビデオデイスクプレ−ヤの焦点検出機構
JPS5936338A (ja) * 1982-08-24 1984-02-28 Matsushita Electric Ind Co Ltd 光デイスク記録再生方法

Also Published As

Publication number Publication date
JPH0547898B2 (enExample) 1993-07-20

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