TW200729194A - Optical pick-up unit for use in an optical player - Google Patents

Optical pick-up unit for use in an optical player

Info

Publication number
TW200729194A
TW200729194A TW095122801A TW95122801A TW200729194A TW 200729194 A TW200729194 A TW 200729194A TW 095122801 A TW095122801 A TW 095122801A TW 95122801 A TW95122801 A TW 95122801A TW 200729194 A TW200729194 A TW 200729194A
Authority
TW
Taiwan
Prior art keywords
radiation beam
unit
optical
detection element
radiation
Prior art date
Application number
TW095122801A
Other languages
English (en)
Inventor
Ronald Reindert Drenten
Lambertus Johannes Maria Bouwman
Original Assignee
Arima Devices 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 Arima Devices Corp filed Critical Arima Devices Corp
Publication of TW200729194A publication Critical patent/TW200729194A/zh

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
    • 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
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G11B7/1263—Power control during transducing, e.g. by monitoring

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
TW095122801A 2005-06-27 2006-06-23 Optical pick-up unit for use in an optical player TW200729194A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05105694 2005-06-27

Publications (1)

Publication Number Publication Date
TW200729194A true TW200729194A (en) 2007-08-01

Family

ID=37192521

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095122801A TW200729194A (en) 2005-06-27 2006-06-23 Optical pick-up unit for use in an optical player

Country Status (2)

Country Link
TW (1) TW200729194A (zh)
WO (1) WO2007000682A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010086581A (ja) 2008-09-30 2010-04-15 Hitachi Ltd 情報記録媒体および光記録再生装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5173598A (en) * 1991-05-10 1992-12-22 U.S. Philips Corporation Optical scanning beam position control system which is free of modulation by tracking error
WO1998033177A2 (en) * 1997-01-29 1998-07-30 Koninklijke Philips Electronics N.V. A method and a device for recording and/or reproducing information
JP2002197653A (ja) * 2000-12-22 2002-07-12 Sharp Corp 光ディスク装置および光ディスク装置のレーザパワー調整方法
WO2004059625A1 (en) * 2002-12-30 2004-07-15 Koninklijke Philips Electronics N.V. Device for playing optical discs

Also Published As

Publication number Publication date
WO2007000682A1 (en) 2007-01-04

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