DE60324009D1 - Optischer kopf und optische datenträgereinheit - Google Patents

Optischer kopf und optische datenträgereinheit

Info

Publication number
DE60324009D1
DE60324009D1 DE60324009T DE60324009T DE60324009D1 DE 60324009 D1 DE60324009 D1 DE 60324009D1 DE 60324009 T DE60324009 T DE 60324009T DE 60324009 T DE60324009 T DE 60324009T DE 60324009 D1 DE60324009 D1 DE 60324009D1
Authority
DE
Germany
Prior art keywords
optical
disc unit
data disc
optical head
head
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE60324009T
Other languages
English (en)
Inventor
Fumitomo Yamasaki
Akihiro Arai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE60324009D1 publication Critical patent/DE60324009D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • 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
    • G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0956—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
    • 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
    • G11B7/13—Optical detectors therefor
    • G11B7/133—Shape of individual detector elements
    • 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
    • G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
    • 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
DE60324009T 2002-10-10 2003-10-08 Optischer kopf und optische datenträgereinheit Expired - Lifetime DE60324009D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002297293 2002-10-10
PCT/JP2003/012864 WO2004038708A1 (ja) 2002-10-10 2003-10-08 光学ヘッドおよび光ディスク装置

Publications (1)

Publication Number Publication Date
DE60324009D1 true DE60324009D1 (de) 2008-11-20

Family

ID=32170883

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60324009T Expired - Lifetime DE60324009D1 (de) 2002-10-10 2003-10-08 Optischer kopf und optische datenträgereinheit

Country Status (7)

Country Link
US (2) US7245565B2 (de)
EP (1) EP1553570B1 (de)
JP (1) JP4549860B2 (de)
CN (1) CN100341057C (de)
AU (1) AU2003272934A1 (de)
DE (1) DE60324009D1 (de)
WO (1) WO2004038708A1 (de)

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DE602004026372D1 (de) * 2003-01-29 2010-05-12 Ricoh Kk Optische Lesekopfvorrichtung und optisches Plattengerät
JP4419654B2 (ja) * 2004-04-02 2010-02-24 コニカミノルタオプト株式会社 光ピックアップ装置
WO2005106865A1 (ja) * 2004-04-28 2005-11-10 Pioneer Corporation 収差補正装置、収差補正方法、光ピックアップ
EP1607952A3 (de) * 2004-06-14 2006-10-11 Matsushita Electric Industrial Co., Ltd. Optischer Kopf, optisches Informationsgerät, und optisches Informationswiedergabeverfahren
JP3857296B2 (ja) * 2005-03-17 2006-12-13 シャープ株式会社 収差検出装置及びそれを備えた光ピックアップ装置
JP2006260694A (ja) * 2005-03-17 2006-09-28 Sharp Corp 収差検出装置およびそれを備えた光ピックアップ装置
JP4825579B2 (ja) * 2006-05-23 2011-11-30 株式会社日立製作所 光ディスク装置
JP2008027565A (ja) * 2006-06-21 2008-02-07 Sharp Corp 光ピックアップ
JP4694455B2 (ja) * 2006-10-03 2011-06-08 シャープ株式会社 収差検出装置およびそれを有する光ピックアップ装置
JP4653226B2 (ja) * 2007-01-05 2011-03-16 パイオニア株式会社 光ピックアップ装置
JP4840167B2 (ja) * 2007-01-31 2011-12-21 船井電機株式会社 光ディスク装置
JP4806643B2 (ja) * 2007-03-09 2011-11-02 株式会社日立メディアエレクトロニクス 光ピックアップ及び光ディスク装置
US7859967B2 (en) * 2007-08-30 2010-12-28 Lite-On It Corporation Optical disk drive with spherical aberration measurement and method of measuring spherical aberration in an optical disk drive
US8081553B2 (en) * 2007-12-14 2011-12-20 Sanyo Electric Co., Ltd. Optical pickup apparatus
JP5143031B2 (ja) * 2008-01-22 2013-02-13 パナソニック株式会社 光ディスクドライブ、光ディスクシステム、光ディスクシステムを搭載した移動体、プログラム、及び記録媒体
TWI368220B (en) * 2008-06-26 2012-07-11 Sunplus Technology Co Ltd Optical storage system and spherical aberration compensation apparatus and method thereof
JP5173953B2 (ja) * 2008-08-01 2013-04-03 三洋電機株式会社 光ピックアップ装置および光ディスク装置
JP5173659B2 (ja) * 2008-08-01 2013-04-03 三洋電機株式会社 光ピックアップ装置および光ディスク装置
WO2011086951A1 (ja) * 2010-01-18 2011-07-21 三菱電機株式会社 光ヘッド装置及び光ディスク装置
TWI406275B (zh) * 2010-08-20 2013-08-21 Sunplus Technology Co Ltd 光碟機中尋找最佳聚焦偏壓及球差補償值的方法與裝置
JP2012238367A (ja) * 2011-05-13 2012-12-06 Hitachi Media Electoronics Co Ltd 光学ヘッド、光学ドライブ装置
JP5653540B2 (ja) 2012-01-06 2015-01-14 三菱電機株式会社 光ヘッド装置及び光ディスク装置
US20220342160A1 (en) * 2019-09-25 2022-10-27 Mitsubishi Electric Corporation Photodetector module and photodetector

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Publication number Priority date Publication date Assignee Title
US6185166B1 (en) * 1993-06-21 2001-02-06 Fujitsu Limited Optical information recording/reproducing apparatus
KR970000645B1 (ko) * 1994-02-26 1997-01-16 엘지전자 주식회사 광픽업 시스템
KR970004210B1 (ko) * 1994-06-10 1997-03-26 엘지전자 주식회사 광픽업 장치
JPH08212611A (ja) * 1995-02-01 1996-08-20 Asahi Optical Co Ltd 波面収差補正装置および光情報記録再生装置
US5754513A (en) * 1995-04-28 1998-05-19 Konica Corporation Information pick-up apparatus and optical disk apparatus
JP3322075B2 (ja) * 1995-06-02 2002-09-09 松下電器産業株式会社 光磁気ピックアップ
JP3563210B2 (ja) * 1996-02-14 2004-09-08 富士通株式会社 光ディスク装置用光学装置及び光ディスク装置
JP3953645B2 (ja) * 1997-06-30 2007-08-08 松下電器産業株式会社 光学ヘッド
KR100483599B1 (ko) * 1997-06-30 2005-09-14 마츠시타 덴끼 산교 가부시키가이샤 광학헤드및정보기록재생장치
EP0984440A3 (de) * 1998-09-04 2000-05-24 Matsushita Electric Industrial Co., Ltd. Vorrichtung zur Aberrationsdetektion und Gerät zur Aufnahme und Wiedergabe von optischer Information
JP3545233B2 (ja) 1998-12-08 2004-07-21 シャープ株式会社 球面収差検出装置および光ピックアップ装置
US6567353B1 (en) * 1999-01-21 2003-05-20 Pentax Corporation Optical head with light receiving element surfaces divided into at least three light receiving areas
TW468175B (en) * 1999-06-22 2001-12-11 Matsushita Electric Ind Co Ltd Liquid crystal driver and optical head for tilt correction
DE19935046C2 (de) 1999-07-26 2001-07-12 Schott Glas Plasma-CVD-Verfahren und Vorrichtung zur Herstellung einer mikrokristallinen Si:H-Schicht auf einem Substrat sowie deren Verwendung
JP2001273661A (ja) * 2000-03-28 2001-10-05 Samsung Electro Mech Co Ltd 傾き検出装置
US6909687B2 (en) * 2000-03-29 2005-06-21 Sanyo Electric Co., Ltd. Optical pickup with a diffraction element consist of six regions providing spatial variation corresponding to a focas state
JP3549047B2 (ja) * 2000-06-08 2004-08-04 シャープ株式会社 光ピックアップ装置及びその収差補正方法並びに収差検出装置
DE60135993D1 (de) 2000-06-26 2008-11-13 Matsushita Electric Ind Co Ltd Optischer kopf
JP2002157756A (ja) * 2000-11-15 2002-05-31 Sharp Corp 焦点位置ずれ検出方法および光ピックアップ装置
JP3827940B2 (ja) * 2000-11-15 2006-09-27 シャープ株式会社 収差検出装置および光ピックアップ装置
KR100396544B1 (ko) 2000-11-17 2003-09-02 삼성전자주식회사 광기록재생기기용 에러신호 검출장치
JP2002358677A (ja) * 2001-05-28 2002-12-13 Hitachi Ltd 光ヘッド及び光ディスク装置

Also Published As

Publication number Publication date
US7746736B2 (en) 2010-06-29
EP1553570A1 (de) 2005-07-13
JPWO2004038708A1 (ja) 2006-02-23
EP1553570A4 (de) 2007-09-12
US20070237040A1 (en) 2007-10-11
CN100341057C (zh) 2007-10-03
WO2004038708A1 (ja) 2004-05-06
US20060164951A1 (en) 2006-07-27
US7245565B2 (en) 2007-07-17
CN1703744A (zh) 2005-11-30
AU2003272934A1 (en) 2004-05-13
EP1553570B1 (de) 2008-10-08
JP4549860B2 (ja) 2010-09-22

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP

8364 No opposition during term of opposition