SG48531A1 - Optical pickup device with a plurality of laser couplers - Google Patents

Optical pickup device with a plurality of laser couplers

Info

Publication number
SG48531A1
SG48531A1 SG1997001704A SG1997001704A SG48531A1 SG 48531 A1 SG48531 A1 SG 48531A1 SG 1997001704 A SG1997001704 A SG 1997001704A SG 1997001704 A SG1997001704 A SG 1997001704A SG 48531 A1 SG48531 A1 SG 48531A1
Authority
SG
Singapore
Prior art keywords
pickup device
optical pickup
laser couplers
couplers
laser
Prior art date
Application number
SG1997001704A
Other languages
English (en)
Inventor
Tadashi Taniguchi
Chiaki Kojima
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
Publication of SG48531A1 publication Critical patent/SG48531A1/en

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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/127—Lasers; Multiple laser arrays
    • 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
    • G11B7/131—Arrangement of detectors in a multiple array
    • 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
    • G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
    • 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
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10532—Heads
    • G11B11/10541—Heads for reproducing
    • G11B11/10543—Heads for reproducing using optical beam of radiation
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)
SG1997001704A 1996-05-27 1997-05-26 Optical pickup device with a plurality of laser couplers SG48531A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8154839A JPH09320098A (ja) 1996-05-27 1996-05-27 光ピックアップ装置および複合光学装置

Publications (1)

Publication Number Publication Date
SG48531A1 true SG48531A1 (en) 1998-04-17

Family

ID=15593021

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1997001704A SG48531A1 (en) 1996-05-27 1997-05-26 Optical pickup device with a plurality of laser couplers

Country Status (10)

Country Link
US (2) US6091689A (de)
EP (2) EP0810589B1 (de)
JP (1) JPH09320098A (de)
KR (1) KR100482228B1 (de)
CN (1) CN1103994C (de)
DE (2) DE69739890D1 (de)
ID (1) ID19379A (de)
MY (1) MY117856A (de)
SG (1) SG48531A1 (de)
TW (1) TW377437B (de)

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US6810057B1 (en) * 1999-11-25 2004-10-26 Matsushita Electric Industrial Co., Ltd. Semiconductor device and optical pickup device
JP3911104B2 (ja) * 1999-11-30 2007-05-09 ペンタックス株式会社 光情報記録再生装置の光学系
JP3689296B2 (ja) * 2000-01-24 2005-08-31 パイオニア株式会社 光ピックアップ装置
JP3614746B2 (ja) 2000-03-01 2005-01-26 松下電器産業株式会社 半導体レーザ装置および光ピックアップ装置
JP2001351266A (ja) * 2000-04-06 2001-12-21 Fujitsu Ltd 光ピックアップ及び光記憶装置
US6687272B2 (en) * 2001-09-18 2004-02-03 Kabushiki Kaisha Toshiba Semiconductor laser device
JP4121285B2 (ja) * 2002-02-18 2008-07-23 株式会社リコー 光源モジュール、光源装置、光走査装置および画像形成装置
JP4445270B2 (ja) * 2002-03-28 2010-04-07 富士通株式会社 レーザアレー装置及びレーザアレー制御方法
JP4602965B2 (ja) * 2003-01-28 2010-12-22 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 光電入力装置、このような装置の製造方法、及びこのような装置の助けを借りて物体の動きを測定する方法
JP2005108321A (ja) * 2003-09-30 2005-04-21 Konica Minolta Opto Inc 光ピックアップ装置及び光情報記録再生装置
DE602004025417D1 (de) * 2003-10-21 2010-03-25 Koninkl Philips Electronics Nv Optisches plattenlaufwerk
IL159838A0 (en) 2004-01-13 2004-06-20 Yehuda Binder Information device
US8699837B2 (en) * 2008-06-23 2014-04-15 Imec Method and system for coupling radiation
DE102013220787A1 (de) * 2013-10-15 2015-04-16 Robert Bosch Gmbh Mikromechanisches Bauelement mit integrierter Photodiode und Mikroprojektor

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Also Published As

Publication number Publication date
KR100482228B1 (ko) 2005-07-18
MY117856A (en) 2004-08-30
EP0810589A2 (de) 1997-12-03
EP1293973A3 (de) 2004-10-13
EP0810589A3 (de) 1998-07-01
US6091689A (en) 2000-07-18
EP1293973A2 (de) 2003-03-19
JPH09320098A (ja) 1997-12-12
EP0810589B1 (de) 2003-08-06
EP1293973B1 (de) 2010-05-26
CN1181576A (zh) 1998-05-13
US6134208A (en) 2000-10-17
DE69739890D1 (de) 2010-07-08
ID19379A (id) 1998-07-09
KR970076587A (ko) 1997-12-12
DE69723919D1 (de) 2003-09-11
DE69723919T2 (de) 2004-07-15
CN1103994C (zh) 2003-03-26
TW377437B (en) 1999-12-21

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