JPS6015839A - 光学的記録・再生装置 - Google Patents

光学的記録・再生装置

Info

Publication number
JPS6015839A
JPS6015839A JP12288683A JP12288683A JPS6015839A JP S6015839 A JPS6015839 A JP S6015839A JP 12288683 A JP12288683 A JP 12288683A JP 12288683 A JP12288683 A JP 12288683A JP S6015839 A JPS6015839 A JP S6015839A
Authority
JP
Japan
Prior art keywords
objective lens
light source
signal
light
recording medium
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
JP12288683A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0320818B2 (enrdf_load_stackoverflow
Inventor
Yasuaki Edahiro
泰明 枝廣
Toru Nakamura
徹 中村
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 JP12288683A priority Critical patent/JPS6015839A/ja
Publication of JPS6015839A publication Critical patent/JPS6015839A/ja
Publication of JPH0320818B2 publication Critical patent/JPH0320818B2/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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP12288683A 1983-07-05 1983-07-05 光学的記録・再生装置 Granted JPS6015839A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12288683A JPS6015839A (ja) 1983-07-05 1983-07-05 光学的記録・再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12288683A JPS6015839A (ja) 1983-07-05 1983-07-05 光学的記録・再生装置

Publications (2)

Publication Number Publication Date
JPS6015839A true JPS6015839A (ja) 1985-01-26
JPH0320818B2 JPH0320818B2 (enrdf_load_stackoverflow) 1991-03-20

Family

ID=14847065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12288683A Granted JPS6015839A (ja) 1983-07-05 1983-07-05 光学的記録・再生装置

Country Status (1)

Country Link
JP (1) JPS6015839A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61276137A (ja) * 1985-05-30 1986-12-06 Fujitsu Ltd 光学ヘツドアクチユエ−タ
JPS6276033A (ja) * 1985-09-30 1987-04-08 Ricoh Co Ltd 光ピツクアツプ

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57191840A (en) * 1981-05-20 1982-11-25 Mitsubishi Electric Corp Track follow-up controller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57191840A (en) * 1981-05-20 1982-11-25 Mitsubishi Electric Corp Track follow-up controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61276137A (ja) * 1985-05-30 1986-12-06 Fujitsu Ltd 光学ヘツドアクチユエ−タ
JPS6276033A (ja) * 1985-09-30 1987-04-08 Ricoh Co Ltd 光ピツクアツプ

Also Published As

Publication number Publication date
JPH0320818B2 (enrdf_load_stackoverflow) 1991-03-20

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