JPH0363137B2 - - Google Patents

Info

Publication number
JPH0363137B2
JPH0363137B2 JP1112683A JP1112683A JPH0363137B2 JP H0363137 B2 JPH0363137 B2 JP H0363137B2 JP 1112683 A JP1112683 A JP 1112683A JP 1112683 A JP1112683 A JP 1112683A JP H0363137 B2 JPH0363137 B2 JP H0363137B2
Authority
JP
Japan
Prior art keywords
tracking
lens barrel
magnetic circuit
support member
optical pickup
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
Application number
JP1112683A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59139150A (ja
Inventor
Kanji Nishii
Yoichi Saito
Masuo Maruyama
Yasuhisa Fukushima
Kazuharu Shiragami
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 JP1112683A priority Critical patent/JPS59139150A/ja
Publication of JPS59139150A publication Critical patent/JPS59139150A/ja
Publication of JPH0363137B2 publication Critical patent/JPH0363137B2/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
    • 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)
  • Automatic Focus Adjustment (AREA)
JP1112683A 1983-01-25 1983-01-25 光ピックアップ Granted JPS59139150A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1112683A JPS59139150A (ja) 1983-01-25 1983-01-25 光ピックアップ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1112683A JPS59139150A (ja) 1983-01-25 1983-01-25 光ピックアップ

Publications (2)

Publication Number Publication Date
JPS59139150A JPS59139150A (ja) 1984-08-09
JPH0363137B2 true JPH0363137B2 (enrdf_load_stackoverflow) 1991-09-30

Family

ID=11769320

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1112683A Granted JPS59139150A (ja) 1983-01-25 1983-01-25 光ピックアップ

Country Status (1)

Country Link
JP (1) JPS59139150A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS59139150A (ja) 1984-08-09

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