DE602004030301D1 - Optischer Kopf und damit versehene Datenverarbeitungseinrichtung - Google Patents

Optischer Kopf und damit versehene Datenverarbeitungseinrichtung

Info

Publication number
DE602004030301D1
DE602004030301D1 DE602004030301T DE602004030301T DE602004030301D1 DE 602004030301 D1 DE602004030301 D1 DE 602004030301D1 DE 602004030301 T DE602004030301 T DE 602004030301T DE 602004030301 T DE602004030301 T DE 602004030301T DE 602004030301 D1 DE602004030301 D1 DE 602004030301D1
Authority
DE
Germany
Prior art keywords
data processing
processing device
device provided
optical head
provided therewith
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.)
Active
Application number
DE602004030301T
Other languages
English (en)
Inventor
Fumitomo Yamasaki
Tohru Nakamura
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
Panasonic 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 Panasonic Corp filed Critical Panasonic Corp
Publication of DE602004030301D1 publication Critical patent/DE602004030301D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G11B7/13—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
    • G11B7/08—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
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08511—Methods for track change, selection or preliminary positioning by moving the head with focus pull-in 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
    • G11B7/0909—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 by astigmatic methods
    • 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
    • G11B7/1372—Lenses
    • G11B7/1378—Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
    • G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
DE602004030301T 2003-06-13 2004-06-09 Optischer Kopf und damit versehene Datenverarbeitungseinrichtung Active DE602004030301D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003169064 2003-06-13

Publications (1)

Publication Number Publication Date
DE602004030301D1 true DE602004030301D1 (de) 2011-01-13

Family

ID=33296899

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004030301T Active DE602004030301D1 (de) 2003-06-13 2004-06-09 Optischer Kopf und damit versehene Datenverarbeitungseinrichtung

Country Status (4)

Country Link
US (2) US7443774B2 (de)
EP (1) EP1486959B1 (de)
CN (2) CN101369433B (de)
DE (1) DE602004030301D1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602004030301D1 (de) * 2003-06-13 2011-01-13 Panasonic Corp Optischer Kopf und damit versehene Datenverarbeitungseinrichtung
JP2007234087A (ja) * 2006-02-27 2007-09-13 Toshiba Corp 光ピックアップヘッド装置、光記憶媒体再生装置および光記憶媒体再生方法
JP2007257750A (ja) * 2006-03-24 2007-10-04 Hitachi Media Electoronics Co Ltd 光ピックアップおよび光ディスク装置
US8068402B2 (en) * 2007-05-08 2011-11-29 Panasonic Corporation Optical head, optical disc device, computer, optical disc player and optical disc recorder

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5251198A (en) * 1992-05-29 1993-10-05 Strickler James H Reading device for multi-layered optical information carrier
KR100382900B1 (ko) * 1994-12-18 2003-11-05 소니 가부시끼 가이샤 광픽업장치
JP3380942B2 (ja) 1994-12-28 2003-02-24 ソニー株式会社 多層光ディスク用光ピックアップ装置
JP3372413B2 (ja) 1995-12-04 2003-02-04 シャープ株式会社 光ピックアップ装置及び光記録再生装置
US5757758A (en) 1995-12-19 1998-05-26 Konica Corporation Optical pickup apparatus objective lens and converging optical system for optical pickup and optical disk apparatus
JPH09180244A (ja) * 1995-12-21 1997-07-11 Victor Co Of Japan Ltd ２層光ディスクのピックアップ装置
JPH09259456A (ja) 1996-03-25 1997-10-03 Toshiba Corp 光ヘッド装置
JP3488584B2 (ja) * 1996-11-06 2004-01-19 パイオニア株式会社 多層光ディスク記録情報の再生装置
JPH1011786A (ja) * 1996-06-21 1998-01-16 Pioneer Electron Corp 情報記録媒体の再生用ピックアップ装置
CN1169573A (zh) 1996-06-24 1998-01-07 声宝股份有限公司 用一个光学头读取或储存不同厚度光盘的方法及装置
KR100449458B1 (ko) * 1996-07-31 2004-09-21 도또리 상요 덴기 가부시끼가이샤 광 디스크 장치
JP3605279B2 (ja) * 1998-02-25 2004-12-22 パイオニア株式会社 光学式ピックアップ
US6307926B1 (en) 1998-05-20 2001-10-23 Sprint Communications Company, L.P. System for detection and prevention of telecommunications fraud prior to call connection
US6469965B1 (en) * 1998-10-02 2002-10-22 Sony Corporation Apparatus for and method of playing back optical disc
CN1146877C (zh) * 1999-06-28 2004-04-21 索尼公司 聚焦伺服引入方法及聚焦伺服装置
US6438088B1 (en) * 1999-07-29 2002-08-20 Hitachi Maxell, Ltd. Light transmission device and apparatus including light transmission device
US7016269B2 (en) * 2000-12-21 2006-03-21 Pioneer Corporation Optical pickup apparatus and focusing control method
JP2002260250A (ja) 2001-03-01 2002-09-13 Ricoh Co Ltd 情報記録再生装置
JP4067781B2 (ja) * 2001-04-13 2008-03-26 株式会社日立エルジーデータストレージ ディスク再生装置
TWI249157B (en) * 2001-07-11 2006-02-11 Via Tech Inc Focusing method of jumping-layer reading data for CD-ROM drive
CN1211789C (zh) * 2001-12-14 2005-07-20 松下电器产业株式会社 光头以及光盘装置
WO2003063150A1 (fr) 2002-01-23 2003-07-31 Matsushita Electric Industrial Co., Ltd. Unite de disque optique
US7054240B2 (en) * 2002-03-04 2006-05-30 Zoran Corporation Method and apparatus for providing focus control on a multi layer disc
US7307926B2 (en) 2002-09-18 2007-12-11 Matsushita Electric Industrial Co., Ltd. Apparatus and method for tracking control
JP2004134061A (ja) 2002-09-18 2004-04-30 Matsushita Electric Ind Co Ltd トラッキング制御装置およびトラッキング制御方法
JP3731660B2 (ja) 2002-10-28 2006-01-05 船井電機株式会社 光ディスク再生装置
US7280453B2 (en) * 2003-04-28 2007-10-09 Matsushita Electric Industrial Co., Ltd. Optical head and read/write drive including the optical head
DE602004030301D1 (de) * 2003-06-13 2011-01-13 Panasonic Corp Optischer Kopf und damit versehene Datenverarbeitungseinrichtung

Also Published As

Publication number Publication date
CN101369433B (zh) 2012-10-10
US7443774B2 (en) 2008-10-28
CN100397507C (zh) 2008-06-25
EP1486959A2 (de) 2004-12-15
US7911908B2 (en) 2011-03-22
CN101369433A (zh) 2009-02-18
EP1486959A3 (de) 2007-07-25
EP1486959B1 (de) 2010-12-01
US20040252612A1 (en) 2004-12-16
US20090040894A1 (en) 2009-02-12
CN1573982A (zh) 2005-02-02

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