JPS6346889B2 - - Google Patents

Info

Publication number
JPS6346889B2
JPS6346889B2 JP5945081A JP5945081A JPS6346889B2 JP S6346889 B2 JPS6346889 B2 JP S6346889B2 JP 5945081 A JP5945081 A JP 5945081A JP 5945081 A JP5945081 A JP 5945081A JP S6346889 B2 JPS6346889 B2 JP S6346889B2
Authority
JP
Japan
Prior art keywords
coil
optical system
error signal
magnetic field
drive
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
JP5945081A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57176542A (en
Inventor
Takeo Yamamoto
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP5945081A priority Critical patent/JPS57176542A/ja
Publication of JPS57176542A publication Critical patent/JPS57176542A/ja
Publication of JPS6346889B2 publication Critical patent/JPS6346889B2/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
    • G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP5945081A 1981-04-20 1981-04-20 Optical system driving device in recording information reader Granted JPS57176542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5945081A JPS57176542A (en) 1981-04-20 1981-04-20 Optical system driving device in recording information reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5945081A JPS57176542A (en) 1981-04-20 1981-04-20 Optical system driving device in recording information reader

Publications (2)

Publication Number Publication Date
JPS57176542A JPS57176542A (en) 1982-10-29
JPS6346889B2 true JPS6346889B2 (ko) 1988-09-19

Family

ID=13113633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5945081A Granted JPS57176542A (en) 1981-04-20 1981-04-20 Optical system driving device in recording information reader

Country Status (1)

Country Link
JP (1) JPS57176542A (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60164932A (ja) * 1984-02-07 1985-08-28 Sanyo Electric Co Ltd 対物レンズ駆動装置
JPH0685228B2 (ja) * 1992-10-21 1994-10-26 ソニー株式会社 ディスクプレーヤの光学ヘッド装置

Also Published As

Publication number Publication date
JPS57176542A (en) 1982-10-29

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