JPH02773B2 - - Google Patents

Info

Publication number
JPH02773B2
JPH02773B2 JP56008547A JP854781A JPH02773B2 JP H02773 B2 JPH02773 B2 JP H02773B2 JP 56008547 A JP56008547 A JP 56008547A JP 854781 A JP854781 A JP 854781A JP H02773 B2 JPH02773 B2 JP H02773B2
Authority
JP
Japan
Prior art keywords
axis
carriage
coil
frame
disk
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
JP56008547A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56134327A (en
Inventor
Aruki Rui
Chiruaaru Misheru
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of JPS56134327A publication Critical patent/JPS56134327A/ja
Publication of JPH02773B2 publication Critical patent/JPH02773B2/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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08582—Sled-type positioners
    • 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
    • G11B7/0901—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 for track following 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
    • G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Automatic Focus Adjustment (AREA)
JP854781A 1980-01-24 1981-01-22 Moving system for device for reading and recording video disk Granted JPS56134327A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8001525A FR2474740A1 (fr) 1980-01-24 1980-01-24 Equipage mobile d'un lecteur enregistreur de videodisque, et lecteur enregistreur de videodisque comprenant un tel equipage

Publications (2)

Publication Number Publication Date
JPS56134327A JPS56134327A (en) 1981-10-21
JPH02773B2 true JPH02773B2 (US06420036-20020716-C00037.png) 1990-01-09

Family

ID=9237833

Family Applications (1)

Application Number Title Priority Date Filing Date
JP854781A Granted JPS56134327A (en) 1980-01-24 1981-01-22 Moving system for device for reading and recording video disk

Country Status (5)

Country Link
US (1) US4414657A (US06420036-20020716-C00037.png)
EP (1) EP0033047B1 (US06420036-20020716-C00037.png)
JP (1) JPS56134327A (US06420036-20020716-C00037.png)
DE (1) DE3067716D1 (US06420036-20020716-C00037.png)
FR (1) FR2474740A1 (US06420036-20020716-C00037.png)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474740A1 (fr) * 1980-01-24 1981-07-31 Thomson Csf Equipage mobile d'un lecteur enregistreur de videodisque, et lecteur enregistreur de videodisque comprenant un tel equipage
FR2522861B1 (fr) * 1982-03-02 1988-01-08 Thomson Csf Tete optique d'ecriture-lecture d'un disque optique et dispositif optique associe a une telle tete
JPS59129952A (ja) * 1983-01-17 1984-07-26 Ricoh Co Ltd 光ピツクアツプ
JPS59168941A (ja) * 1983-03-15 1984-09-22 Ricoh Co Ltd 光ピツクアツプ
JPS60155017U (ja) * 1984-03-24 1985-10-16 パイオニア株式会社 光学情報読取装置
NL8500592A (nl) * 1985-03-04 1986-10-01 Philips Nv Electro-optische inrichting.
US4862441A (en) * 1986-05-27 1989-08-29 Mitsubishi Denki Kabushiki Kaisha Carriage assembly
US4945526A (en) * 1988-10-18 1990-07-31 Laser Magnetic Storage International Company Actuator assembly for optical disk systems
US5296767A (en) * 1991-08-15 1994-03-22 Applied Magnetics Corporation Efficient magnetic motor armatures

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530258A (en) * 1968-06-28 1970-09-22 Mca Technology Inc Video signal transducer having servo controlled flexible fiber optic track centering
FR2294605A1 (fr) * 1974-12-13 1976-07-09 Thomson Brandt Transducteur electrodynamique
DE2645326C2 (de) * 1975-10-08 1984-06-20 Olympus Optical Co., Ltd., Tokio/Tokyo Lesekopf für eine optische Lesevorrichtung
NL176315C (nl) * 1976-05-12 1985-03-18 Philips Nv Optische aftastinrichting.
NL7608561A (nl) * 1976-08-02 1978-02-06 Philips Nv Optische uitleeseenheid voor het aftasten van een registratiedrager voorzien van een stra- lingsreflekterende informatiestruktuur.
JPS6032265B2 (ja) * 1977-04-19 1985-07-26 ソニー株式会社 光学式再生装置の焦点制御装置
JPS5826087B2 (ja) * 1977-07-25 1983-05-31 日本ビクター株式会社 光学的情報記録媒体円盤の再生装置
US4302830A (en) * 1978-05-10 1981-11-24 Olympus Optical Company Ltd. Optical information reading-out apparatus
FR2425782B1 (fr) * 1978-05-10 1988-02-12 Olympus Optical Co Appareil de lecture d'informations optiques
JPS5542369A (en) * 1978-09-19 1980-03-25 Mitsubishi Electric Corp Pickup controller
FR2443734A1 (fr) * 1978-12-08 1980-07-04 Thomson Csf Dispositif d'acces a une piste portee par un support enregistrable ou lisible optiquement et systeme optique comportant un tel dispositif
US4318145A (en) * 1979-10-18 1982-03-02 Burroughs Corporation Multiple-transducer/actuator array
FR2474740A1 (fr) * 1980-01-24 1981-07-31 Thomson Csf Equipage mobile d'un lecteur enregistreur de videodisque, et lecteur enregistreur de videodisque comprenant un tel equipage

Also Published As

Publication number Publication date
JPS56134327A (en) 1981-10-21
EP0033047B1 (fr) 1984-05-02
US4414657A (en) 1983-11-08
FR2474740A1 (fr) 1981-07-31
EP0033047A1 (fr) 1981-08-05
DE3067716D1 (en) 1984-06-07
FR2474740B1 (US06420036-20020716-C00037.png) 1984-10-26

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