ATE75338T1 - Optische kopfeinrichtungen fuer plattenspieler. - Google Patents

Optische kopfeinrichtungen fuer plattenspieler.

Info

Publication number
ATE75338T1
ATE75338T1 AT87301662T AT87301662T ATE75338T1 AT E75338 T1 ATE75338 T1 AT E75338T1 AT 87301662 T AT87301662 T AT 87301662T AT 87301662 T AT87301662 T AT 87301662T AT E75338 T1 ATE75338 T1 AT E75338T1
Authority
AT
Austria
Prior art keywords
light beam
objective lens
generating
driving unit
optical
Prior art date
Application number
AT87301662T
Other languages
English (en)
Inventor
Yoshimasa C O Patents Div Goda
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 ATE75338T1 publication Critical patent/ATE75338T1/de

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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
AT87301662T 1986-03-15 1987-02-25 Optische kopfeinrichtungen fuer plattenspieler. ATE75338T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61057426A JPH0750526B2 (ja) 1986-03-15 1986-03-15 デイスクプレ−ヤの光学ヘツド装置
EP87301662A EP0238224B1 (de) 1986-03-15 1987-02-25 Optische Kopfeinrichtungen für Plattenspieler

Publications (1)

Publication Number Publication Date
ATE75338T1 true ATE75338T1 (de) 1992-05-15

Family

ID=13055326

Family Applications (1)

Application Number Title Priority Date Filing Date
AT87301662T ATE75338T1 (de) 1986-03-15 1987-02-25 Optische kopfeinrichtungen fuer plattenspieler.

Country Status (6)

Country Link
US (1) US4912693A (de)
EP (1) EP0238224B1 (de)
JP (1) JPH0750526B2 (de)
KR (1) KR960000827B1 (de)
AT (1) ATE75338T1 (de)
DE (1) DE3778406D1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61236035A (ja) * 1985-04-09 1986-10-21 Sony Corp 光学ヘツド
JPH0668843B2 (ja) * 1985-08-16 1994-08-31 ソニー株式会社 光学ピツクアツプ装置
DE3831425C2 (de) * 1987-09-16 1998-01-22 Sankyo Seiki Seisakusho Kk Optische Abnehmervorrichtung
JP2529876Y2 (ja) * 1988-03-17 1997-03-19 シャープ株式会社 対物レンズ支持装置
JP2536436Y2 (ja) * 1988-05-25 1997-05-21 シャープ株式会社 対物レンズ駆動装置
US5136565A (en) * 1988-12-20 1992-08-04 Sanyo Electric Co., Ltd. Optical device for reading and writing data on a recording medium
DE3942943A1 (de) * 1989-12-23 1991-06-27 Thomson Brandt Gmbh Optische abtastvorrichtung
JP2728496B2 (ja) * 1989-04-21 1998-03-18 株式会社日立製作所 対物レンズ駆動装置
JP2817301B2 (ja) * 1989-12-28 1998-10-30 松下電器産業株式会社 光ヘッド
KR930009682B1 (ko) * 1991-03-23 1993-10-08 현대전자산업 주식회사 광디스크 구동장치의 광픽업장치
JP2695302B2 (ja) * 1991-05-16 1997-12-24 シャープ株式会社 光ピックアップ駆動装置
JP2641815B2 (ja) * 1991-07-22 1997-08-20 シャープ株式会社 対物レンズ駆動装置
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
JPH087315A (ja) * 1994-06-21 1996-01-12 Sony Corp 光学ピックアップ
US5640279A (en) * 1996-06-07 1997-06-17 Eastman Kodak Company Beam splitter for optical reading and writing actuator
WO2000030082A1 (en) * 1998-11-17 2000-05-25 Fujitsu Limited Optical storage device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8006183A (nl) * 1979-11-12 1981-06-01 Nippon Telegraph & Telephone Opneemorgaan voor gebruik in video- en/of audio- -informatie uitleesinrichtingen.
NL8103305A (nl) * 1981-07-10 1983-02-01 Philips Nv Opto-elektronische inrichting voor het met een stralingsbundel inschrijven en/of uitlezen van registratiesporen.
US4571715A (en) * 1982-02-22 1986-02-18 Nippon Telegraph & Telephone Public Corporation Optical head movable in a tracking direction
JPS5940329A (ja) * 1982-08-30 1984-03-06 Sony Corp 光学ピツクアツプ
JPS59198542A (ja) * 1983-04-26 1984-11-10 Sony Corp 光学デイスクプレ−ヤ
JPS60239943A (ja) * 1984-05-15 1985-11-28 Matsushita Electric Ind Co Ltd 光学ヘツド
US4737946A (en) * 1984-09-03 1988-04-12 Omron Tateisi Electronics Co. Device for processing optical data with improved optical allignment means
JPS61211846A (ja) * 1985-03-18 1986-09-19 Pioneer Electronic Corp 光学式情報記録再生装置におけるピツクアツプ装置

Also Published As

Publication number Publication date
JPH0750526B2 (ja) 1995-05-31
DE3778406D1 (de) 1992-05-27
EP0238224B1 (de) 1992-04-22
KR960000827B1 (ko) 1996-01-13
JPS62214528A (ja) 1987-09-21
KR870009354A (ko) 1987-10-26
US4912693A (en) 1990-03-27
EP0238224A3 (en) 1989-11-29
EP0238224A2 (de) 1987-09-23

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
EELA Cancelled due to lapse of time