JPS59223947A - 対物レンズ駆動装置 - Google Patents

対物レンズ駆動装置

Info

Publication number
JPS59223947A
JPS59223947A JP58099740A JP9974083A JPS59223947A JP S59223947 A JPS59223947 A JP S59223947A JP 58099740 A JP58099740 A JP 58099740A JP 9974083 A JP9974083 A JP 9974083A JP S59223947 A JPS59223947 A JP S59223947A
Authority
JP
Japan
Prior art keywords
objective lens
center
lens
gravity
holding member
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
JP58099740A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0150977B2 (cs
Inventor
Hiroyuki Nakamura
裕行 中村
Masayuki Ito
正之 伊藤
Hiroshi Yasuda
博 安田
Toshiki Matsuno
松野　俊樹
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 JP58099740A priority Critical patent/JPS59223947A/ja
Publication of JPS59223947A publication Critical patent/JPS59223947A/ja
Publication of JPH0150977B2 publication Critical patent/JPH0150977B2/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
    • G11B7/0935—Details of the moving parts

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP58099740A 1983-06-03 1983-06-03 対物レンズ駆動装置 Granted JPS59223947A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58099740A JPS59223947A (ja) 1983-06-03 1983-06-03 対物レンズ駆動装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58099740A JPS59223947A (ja) 1983-06-03 1983-06-03 対物レンズ駆動装置

Publications (2)

Publication Number Publication Date
JPS59223947A true JPS59223947A (ja) 1984-12-15
JPH0150977B2 JPH0150977B2 (cs) 1989-11-01

Family

ID=14255410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58099740A Granted JPS59223947A (ja) 1983-06-03 1983-06-03 対物レンズ駆動装置

Country Status (1)

Country Link
JP (1) JPS59223947A (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61265740A (ja) * 1985-05-20 1986-11-25 Mitsubishi Electric Corp 光デイスク光学手段駆動装置
JPH0197418U (cs) * 1987-12-18 1989-06-28

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61265740A (ja) * 1985-05-20 1986-11-25 Mitsubishi Electric Corp 光デイスク光学手段駆動装置
JPH0197418U (cs) * 1987-12-18 1989-06-28

Also Published As

Publication number Publication date
JPH0150977B2 (cs) 1989-11-01

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