KR900012222A - 광 픽업장치 - Google Patents

광 픽업장치

Info

Publication number
KR900012222A
KR900012222A KR1019900000784A KR900000784A KR900012222A KR 900012222 A KR900012222 A KR 900012222A KR 1019900000784 A KR1019900000784 A KR 1019900000784A KR 900000784 A KR900000784 A KR 900000784A KR 900012222 A KR900012222 A KR 900012222A
Authority
KR
South Korea
Prior art keywords
pickup device
optical pickup
optical
pickup
Prior art date
Application number
KR1019900000784A
Other languages
English (en)
Other versions
KR930003869B1 (ko
Inventor
가라다 유기오
나시데니 유기노라
유시다 유시오
미야기 데이카히로
Original Assignee
샤프 가부시끼가이샤
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 샤프 가부시끼가이샤 filed Critical 샤프 가부시끼가이샤
Publication of KR900012222A publication Critical patent/KR900012222A/ko
Application granted granted Critical
Publication of KR930003869B1 publication Critical patent/KR930003869B1/ko

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
    • G11B7/12—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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Optical Recording Or Reproduction (AREA)
KR1019900000784A 1989-01-27 1990-01-24 광 픽업장치 KR930003869B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1018022A JPH0778904B2 (ja) 1989-01-27 1989-01-27 光ピックアップ装置
JP1-18022 1989-01-27

Publications (2)

Publication Number Publication Date
KR900012222A true KR900012222A (ko) 1990-08-03
KR930003869B1 KR930003869B1 (ko) 1993-05-14

Family

ID=11960041

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900000784A KR930003869B1 (ko) 1989-01-27 1990-01-24 광 픽업장치

Country Status (6)

Country Link
US (1) US5410529A (ko)
EP (1) EP0380320B1 (ko)
JP (1) JPH0778904B2 (ko)
KR (1) KR930003869B1 (ko)
CA (1) CA2008593C (ko)
DE (1) DE69023252T2 (ko)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2617237B2 (ja) * 1990-08-28 1997-06-04 シャープ株式会社 光スポット位置検出装置
JPH06309685A (ja) * 1993-04-26 1994-11-04 Nippon Conlux Co Ltd 光学式情報記録再生装置のレーザ出力制御装置
US5694385A (en) * 1993-09-24 1997-12-02 Ricoh Comany, Ltd. Optical pickup apparatus
KR970010940B1 (ko) * 1994-04-08 1997-07-02 엘지전자 주식회사 광픽업장치
JPH07311961A (ja) * 1994-05-16 1995-11-28 Nippon Steel Corp 光ピックアップ
JPH0845107A (ja) * 1994-08-01 1996-02-16 Oki Electric Ind Co Ltd 光記録・再生装置および情報記録用の媒体
US5523993A (en) * 1995-05-17 1996-06-04 Opto-Electronics & Systems Laboratories Holographic optical element for optical disk pickup head
JP2751884B2 (ja) * 1995-08-15 1998-05-18 日本電気株式会社 光ヘッド装置
WO1997023871A1 (en) * 1995-12-21 1997-07-03 Philips Electronics N.V. Optical scanning device
JPH11213441A (ja) * 1998-01-23 1999-08-06 Rohm Co Ltd 光ピックアップおよびその調整方法
JPH11223729A (ja) * 1998-02-09 1999-08-17 Sankyo Seiki Mfg Co Ltd 偏光分離素子およびその製造方法
JP2003248960A (ja) * 2002-02-25 2003-09-05 Sony Corp 光学ピックアップ及びディスクドライブ装置
JP2009140551A (ja) * 2007-12-05 2009-06-25 Sony Corp 光学ピックアップおよび光ディスクドライブ

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497534A (en) * 1983-02-28 1985-02-05 International Business Machines Corporation Holographic optical head
JPS6124033A (ja) * 1984-07-13 1986-02-01 Sony Corp 光学式ヘツドのトラツキング誤差検出装置
JPS62103857A (ja) * 1985-10-31 1987-05-14 Mitsubishi Electric Corp 光ピツクアツプ装置
EP0228620B1 (en) * 1985-12-10 1991-06-05 Nec Corporation Optical head comprising a diffraction grating for directing two or more diffracted beams to optical detectors
JPS62212940A (ja) * 1986-03-12 1987-09-18 Fujitsu Ltd 光ピツクアツプ
JPS62236147A (ja) * 1986-04-07 1987-10-16 Mitsubishi Electric Corp 光学式情報再生装置
JPS62270034A (ja) * 1986-05-19 1987-11-24 Sony Corp 光学式再生装置
DE3786497T2 (de) * 1986-07-18 1994-02-17 Nec Corp Doppelbrechendes Beugungsgitter und optischer Kopf, in welchem ein linearpolarisierter Strahl auf dieses Gitter gelenkt wird.
JPS63222341A (ja) * 1987-03-12 1988-09-16 Matsushita Electric Ind Co Ltd 光ピツクアツプ
JPS63222340A (ja) * 1987-03-12 1988-09-16 Matsushita Electric Ind Co Ltd 光ピツクアツプ
US4907847A (en) * 1987-09-28 1990-03-13 Nec Home Electronics Ltd. Optical pickup and hologram therefor

Also Published As

Publication number Publication date
EP0380320A2 (en) 1990-08-01
EP0380320A3 (en) 1991-06-26
JPH0778904B2 (ja) 1995-08-23
CA2008593A1 (en) 1990-07-27
CA2008593C (en) 1994-10-04
EP0380320B1 (en) 1995-11-02
DE69023252T2 (de) 1996-07-04
DE69023252D1 (de) 1995-12-07
JPH02199634A (ja) 1990-08-08
US5410529A (en) 1995-04-25
KR930003869B1 (ko) 1993-05-14

Similar Documents

Publication Publication Date Title
DE69030960D1 (de) Optisches Aufzeichnungsgerät
DE69032629T2 (de) Standbildaufnahmevorrichtung
DE69227357T2 (de) Optisches Gerät
IT9020522A0 (it) dispositivo ottico
KR900012257A (ko) 디스크장치의 광학식엔코더
DE69126744T2 (de) Optischer Plattenspieler
DE69018561D1 (de) Optisches Plattengerät.
DE69119314D1 (de) Optischer Plattenspieler
KR900012220A (ko) 광헤드장치
DE69018904T2 (de) Optisches Scheibengerät.
DE69033259D1 (de) Lichtempfangsvorrichtung
KR900012222A (ko) 광 픽업장치
DE69014837D1 (de) Optische Verbindungsvorrichtung.
KR900006946A (ko) 광디스크장치
DE69124342T2 (de) Optischer Plattenspieler
KR910014686A (ko) 광센서
DE69118668T2 (de) Optischer Plattenspieler
DE69026978D1 (de) Autofocusgerät
DE69121696T2 (de) Optisches plattengerät
DE69033479T2 (de) Optisches Aufzeichnungsgerät
KR910005176U (ko) 광학식 뷰파인더
KR950007133U (ko) 광픽업장치
KR910003077U (ko) 레이저 픽업 장치
KR200171184Y1 (en) Optical pickup device
KR910012585U (ko) 광픽업장치의 광학계

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20090508

Year of fee payment: 17

EXPY Expiration of term