JPS5753186A - Optical video disc player - Google Patents

Optical video disc player

Info

Publication number
JPS5753186A
JPS5753186A JP55128878A JP12887880A JPS5753186A JP S5753186 A JPS5753186 A JP S5753186A JP 55128878 A JP55128878 A JP 55128878A JP 12887880 A JP12887880 A JP 12887880A JP S5753186 A JPS5753186 A JP S5753186A
Authority
JP
Japan
Prior art keywords
frame
object lens
fitted
yokes
pair
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
JP55128878A
Other languages
Japanese (ja)
Inventor
Hideshi Kenjo
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.)
Olympus Corp
Original Assignee
Olympus Corp
Olympus Optical 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 Olympus Corp, Olympus Optical Co Ltd filed Critical Olympus Corp
Priority to JP55128878A priority Critical patent/JPS5753186A/en
Publication of JPS5753186A publication Critical patent/JPS5753186A/en
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
    • G11B7/0932—Details of sprung supports

Abstract

PURPOSE:To make a special reproducing operation possible, by supporting an object lens in a displaceable state toward the direction of the disc diameter and by moving this object lens during the flyback time. CONSTITUTION:A holding frame 12 to hold an object lens 11 is formed with magnetic materials and is fitted to an inside frame 18 by a pair of flat springs 13 and 13'. This inside frame 18 is fitted to an outside frame 20 by a pair of spiral round springs 15 and 15'. The first and the second yokes 15 and 15' which cooperate with the holding frame 12 and permanent magnets 16 and 16' are fixed to the outside frame 20. A coil 22 is wound around a ring 21 in one body together with the inside frame 18, and a permanent magnet 23 and yokes 24 and 25 are fitted to the outside frame 20. In this structure, a current corresponding to tracking error is flowed to the first and the second coils 17 and 17' during the vertical flyback period to move the object lens, thereby performing a special reproducing operation.
JP55128878A 1980-09-17 1980-09-17 Optical video disc player Pending JPS5753186A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55128878A JPS5753186A (en) 1980-09-17 1980-09-17 Optical video disc player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55128878A JPS5753186A (en) 1980-09-17 1980-09-17 Optical video disc player

Publications (1)

Publication Number Publication Date
JPS5753186A true JPS5753186A (en) 1982-03-30

Family

ID=14995581

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55128878A Pending JPS5753186A (en) 1980-09-17 1980-09-17 Optical video disc player

Country Status (1)

Country Link
JP (1) JPS5753186A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5997380A (en) * 1982-11-24 1984-06-05 横浜ゴム株式会社 Resin hose for high pressure
JPS60169484U (en) * 1984-04-20 1985-11-09 株式会社　三機精工所 Transfer pipe for high pressure fluid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5997380A (en) * 1982-11-24 1984-06-05 横浜ゴム株式会社 Resin hose for high pressure
JPS60169484U (en) * 1984-04-20 1985-11-09 株式会社　三機精工所 Transfer pipe for high pressure fluid

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