DE68919893T2 - Optische Kopfanordnungen für Plattenspieler. - Google Patents

Optische Kopfanordnungen für Plattenspieler.

Info

Publication number
DE68919893T2
DE68919893T2 DE68919893T DE68919893T DE68919893T2 DE 68919893 T2 DE68919893 T2 DE 68919893T2 DE 68919893 T DE68919893 T DE 68919893T DE 68919893 T DE68919893 T DE 68919893T DE 68919893 T2 DE68919893 T2 DE 68919893T2
Authority
DE
Germany
Prior art keywords
turntables
optical head
head assemblies
assemblies
optical
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
DE68919893T
Other languages
English (en)
Other versions
DE68919893D1 (de
Inventor
Koji Mitsumori
Hidehiro Kume
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE68919893D1 publication Critical patent/DE68919893D1/de
Publication of DE68919893T2 publication Critical patent/DE68919893T2/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
    • G11B7/09—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
    • 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
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1359—Single prisms
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1362—Mirrors
    • 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
    • G11B7/0912—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 by push-pull method
DE68919893T 1988-04-25 1989-04-24 Optische Kopfanordnungen für Plattenspieler. Expired - Fee Related DE68919893T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63101964A JPH01273238A (ja) 1988-04-25 1988-04-25 光学ヘッド装置

Publications (2)

Publication Number Publication Date
DE68919893D1 DE68919893D1 (de) 1995-01-26
DE68919893T2 true DE68919893T2 (de) 1995-04-20

Family

ID=14314552

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68919893T Expired - Fee Related DE68919893T2 (de) 1988-04-25 1989-04-24 Optische Kopfanordnungen für Plattenspieler.

Country Status (6)

Country Link
US (1) US5005162A (de)
EP (1) EP0339900B1 (de)
JP (1) JPH01273238A (de)
KR (1) KR890016521A (de)
DE (1) DE68919893T2 (de)
MY (1) MY103883A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004020952A1 (de) * 2004-04-28 2005-11-24 Deutsche Thomson-Brandt Gmbh Optische Abtastvorrichtung für unterschiedliche Geräte zur Aufzeichnung oder Wiedergabe von Daten oder Informationen mit einem optischen Aufzeichnungsträger

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5804814A (en) * 1994-05-20 1998-09-08 Musha; Toru Optical pick-up head and integrated type optical unit for use in optical pick-up head
US5416755A (en) * 1985-02-28 1995-05-16 Canon Kabushiki Kaisha Optical pickup using split beams impinging on different photo-detector areas
US5136565A (en) * 1988-12-20 1992-08-04 Sanyo Electric Co., Ltd. Optical device for reading and writing data on a recording medium
JPH03104027A (ja) * 1989-09-18 1991-05-01 Sony Corp 対物レンズ駆動装置
JPH0460933A (ja) * 1990-06-26 1992-02-26 Matsushita Electric Ind Co Ltd 光ピックアップヘッド装置
JPH04129048A (ja) * 1990-09-19 1992-04-30 Fujitsu Ltd 光学ヘッド装置
JP3116287B2 (ja) * 1992-02-03 2000-12-11 株式会社リコー 光学式情報記録再生装置
US5577018A (en) * 1992-02-07 1996-11-19 Sony Corporation Phase changing apparatus and optical pickup apparatus for magneto-optic storage device using same
US5285062A (en) * 1992-04-14 1994-02-08 Hoetron, Inc. Laser/detector hybrid with mirror source and diffracted return beam
US5481515A (en) * 1992-06-02 1996-01-02 Hitachi, Ltd. Optical information storage medium control apparatus
EP0577197B1 (de) * 1992-07-01 1997-10-22 Koninklijke Philips Electronics N.V. Optoelektronische Einrichtung und Verfahren zur Herstellung dieser Einrichtung
DE69314705T2 (de) * 1992-07-01 1998-04-09 Koninkl Philips Electronics Nv Optoelektronische Einrichtung und Verfahren zur Herstellung dieser Einrichtung
US5921659A (en) * 1993-06-18 1999-07-13 Light & Sound Design, Ltd. Stage lighting lamp unit and stage lighting system including such unit
WO1995009418A1 (fr) * 1993-09-27 1995-04-06 Seiko Epson Corporation Tete optique
JP2692549B2 (ja) * 1993-10-15 1997-12-17 日本電気株式会社 光ディスク装置の光学ヘッド
JPH07161055A (ja) * 1993-12-03 1995-06-23 Nec Corp 光ピックアップ
US5598394A (en) * 1994-05-19 1997-01-28 Sanyo Electric Co., Ltd. Optical pick-up
US5898652A (en) * 1994-07-08 1999-04-27 Seiko Epson Corporation Support structure for an optical pickup
JPH0830991A (ja) * 1994-07-08 1996-02-02 Seiko Epson Corp 光ピックアップ装置
US5874722A (en) 1994-07-19 1999-02-23 Spectra-Physics Scanning Systems, Inc. Compact scanner module mountable to pointing instrument
JP3050752B2 (ja) * 1994-07-21 2000-06-12 ティアック株式会社 光ピックアップ装置
JP2806293B2 (ja) * 1994-10-06 1998-09-30 松下電器産業株式会社 光ピックアップ及びその製造方法
US5727111A (en) * 1995-06-19 1998-03-10 Sony Corporation Optical pick-up and light detecting cover therefor
EP0851414A3 (de) * 1996-12-26 2000-09-27 Sanyo Electric Co. Ltd Optische Abtastvorrichtung und Abspielgerät
JPH10320810A (ja) * 1997-05-22 1998-12-04 Sankyo Seiki Mfg Co Ltd 半導体レーザ装置および光ピックアップ装置
JP2000011422A (ja) * 1998-04-24 2000-01-14 Sony Corp 集積化受発光装置
JP2000048374A (ja) * 1998-07-30 2000-02-18 Matsushita Electric Ind Co Ltd ディスク記録再生装置
US6865743B2 (en) * 1999-02-24 2005-03-08 Matsushita Electric Industrial Co., Ltd. Optical head and method of manufacturing the same
TW563120B (en) * 1999-10-26 2003-11-21 Toshiba Corp Optical head and optical disk apparatus having the same
KR100370016B1 (ko) * 2000-06-02 2003-01-29 엘지전자 주식회사 광 정보 저장 장치용 마이크로 미러 및 그 제조 방법과,그를 이용한 광픽업 장치
JP2005503636A (ja) * 2001-09-20 2005-02-03 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 光走査装置のための光ユニット
DE10214775A1 (de) * 2002-04-03 2003-10-16 Thomson Brandt Gmbh Vorrichtung zur Korrektur von Signalmodulationen
JP4411380B2 (ja) * 2004-08-12 2010-02-10 新オプトウエア株式会社 光情報記録装置および光情報再生装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882317A (en) * 1972-08-26 1975-05-06 Philips Corp Apparatus for reading a rotating disc-shaped record carrier
EP0226647B1 (de) * 1985-12-17 1991-05-29 Ibm Deutschland Gmbh Schreib/Lesekopf für optische Platten
JPS62283430A (ja) * 1986-05-31 1987-12-09 Sony Corp 光学ヘツド
DE3783101T2 (de) * 1986-02-24 1993-04-22 Sony Corp Anordnung zum nachweis des brennpunktes.
JPS6352342A (ja) * 1986-08-20 1988-03-05 Sony Corp 光ピツクアツプ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004020952A1 (de) * 2004-04-28 2005-11-24 Deutsche Thomson-Brandt Gmbh Optische Abtastvorrichtung für unterschiedliche Geräte zur Aufzeichnung oder Wiedergabe von Daten oder Informationen mit einem optischen Aufzeichnungsträger

Also Published As

Publication number Publication date
EP0339900A2 (de) 1989-11-02
MY103883A (en) 1993-09-30
EP0339900B1 (de) 1994-12-14
US5005162A (en) 1991-04-02
KR890016521A (ko) 1989-11-29
EP0339900A3 (en) 1990-12-27
DE68919893D1 (de) 1995-01-26
JPH01273238A (ja) 1989-11-01

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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