JPS59195337A - 光ピックアップ装置 - Google Patents

光ピックアップ装置

Info

Publication number
JPS59195337A
JPS59195337A JP58070333A JP7033383A JPS59195337A JP S59195337 A JPS59195337 A JP S59195337A JP 58070333 A JP58070333 A JP 58070333A JP 7033383 A JP7033383 A JP 7033383A JP S59195337 A JPS59195337 A JP S59195337A
Authority
JP
Japan
Prior art keywords
coil
optical axis
pole
magnet
tracking
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
JP58070333A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0546020B2 (enrdf_load_stackoverflow
Inventor
Kanji Nishii
西井　完治
Akifumi Nakada
中田　彬史
Akihiro Sakaguchi
彰洋 坂口
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 JP58070333A priority Critical patent/JPS59195337A/ja
Publication of JPS59195337A publication Critical patent/JPS59195337A/ja
Publication of JPH0546020B2 publication Critical patent/JPH0546020B2/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
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0932—Details of sprung supports

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP58070333A 1983-04-20 1983-04-20 光ピックアップ装置 Granted JPS59195337A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58070333A JPS59195337A (ja) 1983-04-20 1983-04-20 光ピックアップ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58070333A JPS59195337A (ja) 1983-04-20 1983-04-20 光ピックアップ装置

Publications (2)

Publication Number Publication Date
JPS59195337A true JPS59195337A (ja) 1984-11-06
JPH0546020B2 JPH0546020B2 (enrdf_load_stackoverflow) 1993-07-12

Family

ID=13428388

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58070333A Granted JPS59195337A (ja) 1983-04-20 1983-04-20 光ピックアップ装置

Country Status (1)

Country Link
JP (1) JPS59195337A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62125545A (ja) * 1985-11-27 1987-06-06 Olympus Optical Co Ltd 光学式ピツクアツプ用アクチユエ−タ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5778642A (en) * 1980-10-31 1982-05-17 Matsushita Electric Ind Co Ltd Movable optical device
JPS5792441A (en) * 1980-11-28 1982-06-09 Hitachi Ltd Three-dimensional driving body supporting device
JPS59188849A (ja) * 1983-04-12 1984-10-26 Matsushita Electric Ind Co Ltd 光ピツクアツプ装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5778642A (en) * 1980-10-31 1982-05-17 Matsushita Electric Ind Co Ltd Movable optical device
JPS5792441A (en) * 1980-11-28 1982-06-09 Hitachi Ltd Three-dimensional driving body supporting device
JPS59188849A (ja) * 1983-04-12 1984-10-26 Matsushita Electric Ind Co Ltd 光ピツクアツプ装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62125545A (ja) * 1985-11-27 1987-06-06 Olympus Optical Co Ltd 光学式ピツクアツプ用アクチユエ−タ

Also Published As

Publication number Publication date
JPH0546020B2 (enrdf_load_stackoverflow) 1993-07-12

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