JPH0554182B2 - - Google Patents

Info

Publication number
JPH0554182B2
JPH0554182B2 JP59087488A JP8748884A JPH0554182B2 JP H0554182 B2 JPH0554182 B2 JP H0554182B2 JP 59087488 A JP59087488 A JP 59087488A JP 8748884 A JP8748884 A JP 8748884A JP H0554182 B2 JPH0554182 B2 JP H0554182B2
Authority
JP
Japan
Prior art keywords
objective lens
tracking
coil
focusing
magnetic field
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
JP59087488A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6035342A (ja
Inventor
Yasuo Hachi
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 JP8748884A priority Critical patent/JPS6035342A/ja
Publication of JPS6035342A publication Critical patent/JPS6035342A/ja
Publication of JPH0554182B2 publication Critical patent/JPH0554182B2/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

  • Optical Recording Or Reproduction (AREA)
JP8748884A 1984-04-28 1984-04-28 デイスクプレーヤ Granted JPS6035342A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8748884A JPS6035342A (ja) 1984-04-28 1984-04-28 デイスクプレーヤ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8748884A JPS6035342A (ja) 1984-04-28 1984-04-28 デイスクプレーヤ

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP50038592A Division JPS51114102A (en) 1975-04-01 1975-04-01 Signal reading and control device for disc player

Publications (2)

Publication Number Publication Date
JPS6035342A JPS6035342A (ja) 1985-02-23
JPH0554182B2 true JPH0554182B2 (en]) 1993-08-11

Family

ID=13916332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8748884A Granted JPS6035342A (ja) 1984-04-28 1984-04-28 デイスクプレーヤ

Country Status (1)

Country Link
JP (1) JPS6035342A (en])

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4989507A (en]) * 1972-12-26 1974-08-27

Also Published As

Publication number Publication date
JPS6035342A (ja) 1985-02-23

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