JPH0522297B2 - - Google Patents

Info

Publication number
JPH0522297B2
JPH0522297B2 JP58193957A JP19395783A JPH0522297B2 JP H0522297 B2 JPH0522297 B2 JP H0522297B2 JP 58193957 A JP58193957 A JP 58193957A JP 19395783 A JP19395783 A JP 19395783A JP H0522297 B2 JPH0522297 B2 JP H0522297B2
Authority
JP
Japan
Prior art keywords
objective lens
fixed
permanent magnet
outer frame
cylindrical body
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
JP58193957A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6085446A (ja
Inventor
Tatsuo Goto
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP19395783A priority Critical patent/JPS6085446A/ja
Publication of JPS6085446A publication Critical patent/JPS6085446A/ja
Publication of JPH0522297B2 publication Critical patent/JPH0522297B2/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
    • G11B7/081—Disposition or mounting of heads or light sources relatively to record carriers for time base error correction by moving the light beam
    • 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
    • G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP19395783A 1983-10-17 1983-10-17 光学的情報記録再生装置の対物レンズ駆動装置 Granted JPS6085446A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19395783A JPS6085446A (ja) 1983-10-17 1983-10-17 光学的情報記録再生装置の対物レンズ駆動装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19395783A JPS6085446A (ja) 1983-10-17 1983-10-17 光学的情報記録再生装置の対物レンズ駆動装置

Publications (2)

Publication Number Publication Date
JPS6085446A JPS6085446A (ja) 1985-05-14
JPH0522297B2 true JPH0522297B2 (zh) 1993-03-29

Family

ID=16316568

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19395783A Granted JPS6085446A (ja) 1983-10-17 1983-10-17 光学的情報記録再生装置の対物レンズ駆動装置

Country Status (1)

Country Link
JP (1) JPS6085446A (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63244417A (ja) * 1987-03-31 1988-10-11 Toshiba Corp 情報再生装置
US4857781A (en) * 1988-07-13 1989-08-15 Eastman Kodak Company High-speed non-contact linear motor with magnetic levitation
EP0990232B1 (en) * 1998-04-17 2005-07-27 Koninklijke Philips Electronics N.V. Optical scanning device comprising a lens system with a compact actuator
US7440201B2 (en) 2003-04-16 2008-10-21 Nidec Sankyo Corporation Lens driving device and portable equipment with camera

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5782234A (en) * 1980-11-11 1982-05-22 Mitsubishi Electric Corp Optical head
JPS5817552A (ja) * 1981-07-10 1983-02-01 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン オプト・エレクトロニツク装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5782234A (en) * 1980-11-11 1982-05-22 Mitsubishi Electric Corp Optical head
JPS5817552A (ja) * 1981-07-10 1983-02-01 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン オプト・エレクトロニツク装置

Also Published As

Publication number Publication date
JPS6085446A (ja) 1985-05-14

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