JPH0546020B2 - - Google Patents

Info

Publication number
JPH0546020B2
JPH0546020B2 JP58070333A JP7033383A JPH0546020B2 JP H0546020 B2 JPH0546020 B2 JP H0546020B2 JP 58070333 A JP58070333 A JP 58070333A JP 7033383 A JP7033383 A JP 7033383A JP H0546020 B2 JPH0546020 B2 JP H0546020B2
Authority
JP
Japan
Prior art keywords
coil
objective lens
pair
lens barrel
optical axis
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
JP58070333A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59195337A (ja
Inventor
Kanji Nishii
Akifumi Nakada
Akihiro Sakaguchi
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 JP7033383A 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)
JP7033383A 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
JP7033383A 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
JP7033383A JPS59195337A (ja) 1983-04-20 1983-04-20 光ピックアップ装置

Publications (2)

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

Family

ID=13428388

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7033383A 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 (en])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2620221B2 (ja) * 1985-11-27 1997-06-11 オリンパス光学工業株式会社 光学式ピックアップ用アクチュエータ

Family Cites Families (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

Also Published As

Publication number Publication date
JPS59195337A (ja) 1984-11-06

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