DE68926463T2 - Höhenverstellungseinrichtung für die Abtasteinheit eines optischen Plattenspielers - Google Patents

Höhenverstellungseinrichtung für die Abtasteinheit eines optischen Plattenspielers

Info

Publication number
DE68926463T2
DE68926463T2 DE68926463T DE68926463T DE68926463T2 DE 68926463 T2 DE68926463 T2 DE 68926463T2 DE 68926463 T DE68926463 T DE 68926463T DE 68926463 T DE68926463 T DE 68926463T DE 68926463 T2 DE68926463 T2 DE 68926463T2
Authority
DE
Germany
Prior art keywords
adjustment device
height adjustment
scanning unit
optical turntable
turntable
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 - Fee Related
Application number
DE68926463T
Other languages
English (en)
Other versions
DE68926463D1 (de
Inventor
Shinsaku Nozu
Tetsuo Shimizu
Seiji Ohmori
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
Publication of DE68926463D1 publication Critical patent/DE68926463D1/de
Application granted granted Critical
Publication of DE68926463T2 publication Critical patent/DE68926463T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B7/08594—Arrangements for mechanically moving the whole head to access both sides of the disc with the same head assembly
    • 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
    • G11B7/094—Methods and circuits for servo offset compensation
    • 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
    • G11B7/0908—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 focusing only
DE68926463T 1988-07-04 1989-03-28 Höhenverstellungseinrichtung für die Abtasteinheit eines optischen Plattenspielers Expired - Fee Related DE68926463T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63166570A JP2676371B2 (ja) 1988-07-04 1988-07-04 ピックアップの高さ調整装置

Publications (2)

Publication Number Publication Date
DE68926463D1 DE68926463D1 (de) 1996-06-13
DE68926463T2 true DE68926463T2 (de) 1996-10-31

Family

ID=15833712

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68926463T Expired - Fee Related DE68926463T2 (de) 1988-07-04 1989-03-28 Höhenverstellungseinrichtung für die Abtasteinheit eines optischen Plattenspielers

Country Status (4)

Country Link
US (1) US5090000A (de)
EP (2) EP0568111B1 (de)
JP (1) JP2676371B2 (de)
DE (1) DE68926463T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0352123A (ja) * 1989-07-19 1991-03-06 Matsushita Electric Ind Co Ltd 対物レンズ駆動装置
JP2519827B2 (ja) * 1990-09-14 1996-07-31 シャープ株式会社 ディスク再生装置
AT400634B (de) * 1992-12-09 1996-02-26 Hoerbiger Ventilwerke Ag Proportionalventil mit wegaufnehmer
WO2009116333A1 (ja) * 2008-03-18 2009-09-24 日本電気株式会社 可撓性光ディスクの搬送体、光ディスク搬送装置および光ディスク搬送方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2309888A1 (fr) * 1975-04-30 1976-11-26 Thomson Brandt Dispositif optique de projection et lecteur optique comportant un tel dispositif
JPS57161813A (en) * 1981-03-31 1982-10-05 Olympus Optical Co Ltd Optical head driver
JPS5885940A (ja) * 1981-11-17 1983-05-23 Hitachi Ltd 光デイスクの自動焦点引込み方法
JPS59116942A (ja) * 1982-12-23 1984-07-06 Olympus Optical Co Ltd オ−トフォ−カス装置
JPS59140640A (ja) * 1983-01-31 1984-08-13 Canon Inc 自動焦点引込み装置
JPS59188845A (ja) * 1983-04-08 1984-10-26 Onkyo Corp 光ピツクアツプ
JPS59231745A (ja) * 1983-06-13 1984-12-26 Mitsubishi Electric Corp 自動焦点制御装置
JPS6057542A (ja) * 1983-09-07 1985-04-03 Hitachi Ltd ディスク装置のフォ−カス制御装置
JP2625671B2 (ja) * 1984-11-06 1997-07-02 松下電器産業株式会社 焦点位置制御装置
JPS61194646A (ja) * 1985-02-22 1986-08-29 Hitachi Ltd 自動焦点制御系
US4740679A (en) * 1985-02-27 1988-04-26 Olympus Optical Co., Ltd. Disc focus servo-circuit with ordered reference level setting means
JPS61208641A (ja) * 1985-03-13 1986-09-17 Olympus Optical Co Ltd 光学的情報記録再生装置
JPS6355735A (ja) * 1986-08-26 1988-03-10 Nippon Telegr & Teleph Corp <Ntt> 光記録装置及び光再生装置

Also Published As

Publication number Publication date
EP0568111A2 (de) 1993-11-03
US5090000A (en) 1992-02-18
EP0350144A3 (en) 1990-10-17
EP0568111A3 (en) 1994-08-10
DE68926463D1 (de) 1996-06-13
JPH0218717A (ja) 1990-01-23
EP0568111B1 (de) 1996-05-08
EP0350144A2 (de) 1990-01-10
JP2676371B2 (ja) 1997-11-12

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee