JPS5753835A - Hikaribiimuhenkosochi - Google Patents

Hikaribiimuhenkosochi

Info

Publication number
JPS5753835A
JPS5753835A JP12810680A JP12810680A JPS5753835A JP S5753835 A JPS5753835 A JP S5753835A JP 12810680 A JP12810680 A JP 12810680A JP 12810680 A JP12810680 A JP 12810680A JP S5753835 A JPS5753835 A JP S5753835A
Authority
JP
Japan
Prior art keywords
permanent magnets
magnets
repulsive force
same time
opposite
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.)
Pending
Application number
JP12810680A
Other languages
English (en)
Inventor
Koji Kamisaka
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP12810680A priority Critical patent/JPS5753835A/ja
Publication of JPS5753835A publication Critical patent/JPS5753835A/ja
Pending 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
    • G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking

Landscapes

  • Mechanical Optical Scanning Systems (AREA)
  • Optical Recording Or Reproduction (AREA)
JP12810680A 1980-09-16 1980-09-16 Hikaribiimuhenkosochi Pending JPS5753835A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12810680A JPS5753835A (ja) 1980-09-16 1980-09-16 Hikaribiimuhenkosochi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12810680A JPS5753835A (ja) 1980-09-16 1980-09-16 Hikaribiimuhenkosochi

Publications (1)

Publication Number Publication Date
JPS5753835A true JPS5753835A (ja) 1982-03-31

Family

ID=14976531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12810680A Pending JPS5753835A (ja) 1980-09-16 1980-09-16 Hikaribiimuhenkosochi

Country Status (1)

Country Link
JP (1) JPS5753835A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4557564A (en) * 1983-10-27 1985-12-10 U.S. Philips Corporation Movable scanning unit for an optical recording or playback apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4557564A (en) * 1983-10-27 1985-12-10 U.S. Philips Corporation Movable scanning unit for an optical recording or playback apparatus

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