JPS5480708A - Movable lens device for optical information recording medium disc reproducer - Google Patents

Movable lens device for optical information recording medium disc reproducer

Info

Publication number
JPS5480708A
JPS5480708A JP14807977A JP14807977A JPS5480708A JP S5480708 A JPS5480708 A JP S5480708A JP 14807977 A JP14807977 A JP 14807977A JP 14807977 A JP14807977 A JP 14807977A JP S5480708 A JPS5480708 A JP S5480708A
Authority
JP
Japan
Prior art keywords
coils
lens
errors
recording medium
information recording
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.)
Granted
Application number
JP14807977A
Other languages
English (en)
Other versions
JPS5826088B2 (ja
Inventor
Kosei Wada
Kazuo Tatsuguchi
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 JP52148079A priority Critical patent/JPS5826088B2/ja
Publication of JPS5480708A publication Critical patent/JPS5480708A/ja
Publication of JPS5826088B2 publication Critical patent/JPS5826088B2/ja
Expired 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
    • G11B7/081—Disposition or mounting of heads or light sources relatively to record carriers for time base error correction by moving the light beam
    • 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
    • G11B7/0929—Electromechanical actuators for lens positioning for tracking only
    • 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

  • Lens Barrels (AREA)
  • Optical Recording Or Reproduction (AREA)
JP52148079A 1977-12-12 1977-12-12 光学的情報記録媒体円盤再生装置における可動レンズ装置 Expired JPS5826088B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52148079A JPS5826088B2 (ja) 1977-12-12 1977-12-12 光学的情報記録媒体円盤再生装置における可動レンズ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52148079A JPS5826088B2 (ja) 1977-12-12 1977-12-12 光学的情報記録媒体円盤再生装置における可動レンズ装置

Publications (2)

Publication Number Publication Date
JPS5480708A true JPS5480708A (en) 1979-06-27
JPS5826088B2 JPS5826088B2 (ja) 1983-05-31

Family

ID=15444745

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52148079A Expired JPS5826088B2 (ja) 1977-12-12 1977-12-12 光学的情報記録媒体円盤再生装置における可動レンズ装置

Country Status (1)

Country Link
JP (1) JPS5826088B2 (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50115842A (ja) * 1974-02-13 1975-09-10
JPS5255423A (en) * 1975-10-31 1977-05-06 Olympus Optical Co Ltd Information detection head of information reader

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50115842A (ja) * 1974-02-13 1975-09-10
JPS5255423A (en) * 1975-10-31 1977-05-06 Olympus Optical Co Ltd Information detection head of information reader

Also Published As

Publication number Publication date
JPS5826088B2 (ja) 1983-05-31

Similar Documents

Publication Publication Date Title
US4449213A (en) Optical reading apparatus
US4302830A (en) Optical information reading-out apparatus
US4596448A (en) Optical system support and positioning device for use in an optical reading apparatus
US3830505A (en) Vertical stabilizer for phonograph arms
EP0154302B1 (en) Optical system for detecting a position of an objective lens
JPS57150144A (en) Optical recorder and reproducer
JPS6446240A (en) Disk device
EP0392777A3 (en) Track access control system in rotating disc devices with eccentricity correction
JPS5480708A (en) Movable lens device for optical information recording medium disc reproducer
MY103553A (en) Tracking circuit for an optical pick-up
US4530079A (en) Track following system for optical disc drive
JPS5794940A (en) Optical disk device
JPS5755548A (en) Magnetic disk device
TWI234150B (en) Optical pickup actuator, optical pickup employing the optical pickup actuator, and optical recording and/or reproducing apparatus employing the optical pickup
JP2563383B2 (ja) 記録再生装置
JPS52134705A (en) Optical recorder/reproducer unit
JPS5542372A (en) Magnetic recording and reproducing device
JPS56111169A (en) Track servo system of magnetic disc device
JPS5769540A (en) Optical information recording and producting device
JPS58146055A (ja) 記録再生デイスク装置
JPS544101A (en) Signal pickupdevice for reproducing system using rotary information recording medium
JPS5429609A (en) Moving mirror device in optical information recording medium disc reproducer
JPH0348775Y2 (ja)
JPS567245A (en) Automatic focusing unit in optical information reproducing device
JPS6464134A (en) Optical recording and reproducing device