ATE492017T1 - Verbesserung der lebensdauer von laserdioden in optischen laufwerken - Google Patents

Verbesserung der lebensdauer von laserdioden in optischen laufwerken

Info

Publication number
ATE492017T1
ATE492017T1 AT08007948T AT08007948T ATE492017T1 AT E492017 T1 ATE492017 T1 AT E492017T1 AT 08007948 T AT08007948 T AT 08007948T AT 08007948 T AT08007948 T AT 08007948T AT E492017 T1 ATE492017 T1 AT E492017T1
Authority
AT
Austria
Prior art keywords
light source
laser
laser light
lifetime
improving
Prior art date
Application number
AT08007948T
Other languages
English (en)
Inventor
Richard Rutschmann
Michael Huonker
Original Assignee
Harman Becker Automotive Sys
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 Harman Becker Automotive Sys filed Critical Harman Becker Automotive Sys
Application granted granted Critical
Publication of ATE492017T1 publication Critical patent/ATE492017T1/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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • 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
    • G11B7/0901—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 track following only
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Semiconductor Lasers (AREA)
  • Led Devices (AREA)
AT08007948T 2008-04-24 2008-04-24 Verbesserung der lebensdauer von laserdioden in optischen laufwerken ATE492017T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08007948A EP2112657B1 (de) 2008-04-24 2008-04-24 Verbesserung der Lebensdauer von Laserdioden in optischen Laufwerken

Publications (1)

Publication Number Publication Date
ATE492017T1 true ATE492017T1 (de) 2011-01-15

Family

ID=39769402

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08007948T ATE492017T1 (de) 2008-04-24 2008-04-24 Verbesserung der lebensdauer von laserdioden in optischen laufwerken

Country Status (6)

Country Link
US (1) US8223616B2 (de)
EP (1) EP2112657B1 (de)
JP (2) JP2011519108A (de)
AT (1) ATE492017T1 (de)
DE (1) DE602008003974D1 (de)
WO (1) WO2009129921A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602008003974D1 (de) 2008-04-24 2011-01-27 Harman Becker Automotive Sys Verbesserung der Lebensdauer von Laserdioden in optischen Laufwerken
DE102012102785B3 (de) * 2012-03-30 2013-02-21 Marius Jurca Verfahren und Überwachungseinrichtung zur Erfassung und Überwachung der Verschmutzung einer optischen Komponente in einer Vorrichtung zur Lasermaterialbearbeitung
CN104240732B (zh) * 2013-06-07 2017-10-03 杭州海康威视数字技术股份有限公司 光盘写入方法及装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60239929A (ja) * 1984-05-15 1985-11-28 Matsushita Electric Ind Co Ltd 光学的記録再生装置
JPH0250324A (ja) * 1988-08-12 1990-02-20 Canon Inc 情報記録再生装置
JPH0388127A (ja) * 1989-08-31 1991-04-12 Nec Corp 光記録再生方法
DK0465053T3 (da) 1990-06-29 2002-10-07 Sony Corp Plade registrerings/reproduktionsapparatur
JP3230319B2 (ja) * 1992-07-09 2001-11-19 ソニー株式会社 音響再生装置
JPH06338056A (ja) * 1993-05-28 1994-12-06 Olympus Optical Co Ltd 光記録媒体の情報記録再生装置
KR950001695A (ko) * 1993-06-18 1995-01-03 오오가 노리오 디스크 재생장치
JPH10177732A (ja) * 1996-12-16 1998-06-30 Hitachi Ltd 光記録再生方法、光記録再生装置、半導体レーザ装置及びその製造方法
JPH11149716A (ja) * 1997-11-17 1999-06-02 Matsushita Electric Ind Co Ltd ディスク再生装置
JP2004355795A (ja) * 2003-05-08 2004-12-16 Matsushita Electric Ind Co Ltd 光ディスク装置、カメラ装置、発光動作を制御する方法
EP1513142A3 (de) 2003-05-08 2007-06-13 Matsushita Electric Industrial Co., Ltd. Optisches Plattengerät, Videokamera mit optischen Plattengerät und Verfahren zur Steurung der Lichtemission
EP1619675A1 (de) 2004-07-21 2006-01-25 Deutsche Thomson-Brandt Gmbh Wiedergabeanordnung für optische Datenträger mit einer verbesserten Laserdiodelebenszeit
DE602008003974D1 (de) 2008-04-24 2011-01-27 Harman Becker Automotive Sys Verbesserung der Lebensdauer von Laserdioden in optischen Laufwerken

Also Published As

Publication number Publication date
US20110096646A1 (en) 2011-04-28
JP2014081994A (ja) 2014-05-08
WO2009129921A1 (en) 2009-10-29
JP5808831B2 (ja) 2015-11-10
EP2112657B1 (de) 2010-12-15
WO2009129921A8 (en) 2010-12-23
CN102067214A (zh) 2011-05-18
EP2112657A1 (de) 2009-10-28
US8223616B2 (en) 2012-07-17
JP2011519108A (ja) 2011-06-30
DE602008003974D1 (de) 2011-01-27

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Legal Events

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