DE69612572T2 - Optischer kopf - Google Patents

Optischer kopf

Info

Publication number
DE69612572T2
DE69612572T2 DE69612572T DE69612572T DE69612572T2 DE 69612572 T2 DE69612572 T2 DE 69612572T2 DE 69612572 T DE69612572 T DE 69612572T DE 69612572 T DE69612572 T DE 69612572T DE 69612572 T2 DE69612572 T2 DE 69612572T2
Authority
DE
Germany
Prior art keywords
optical head
optical
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
DE69612572T
Other languages
English (en)
Other versions
DE69612572D1 (de
Inventor
Takayuki Nagata
Akihiro Arai
Toru Nakamura
Takao Hayashi
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 DE69612572D1 publication Critical patent/DE69612572D1/de
Publication of DE69612572T2 publication Critical patent/DE69612572T2/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
    • G11B7/08—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
    • 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
    • G11B7/0903—Multi-beam tracking systems
    • 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
    • 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
    • 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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
DE69612572T 1995-10-27 1996-10-28 Optischer kopf Expired - Lifetime DE69612572T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP28037295 1995-10-27
PCT/JP1996/003141 WO1997015923A1 (en) 1995-10-27 1996-10-28 Optical head

Publications (2)

Publication Number Publication Date
DE69612572D1 DE69612572D1 (de) 2001-05-23
DE69612572T2 true DE69612572T2 (de) 2001-08-09

Family

ID=17624102

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69612572T Expired - Lifetime DE69612572T2 (de) 1995-10-27 1996-10-28 Optischer kopf

Country Status (7)

Country Link
US (2) US6275463B1 (de)
EP (1) EP0882292B1 (de)
JP (1) JP3590637B2 (de)
KR (1) KR100374451B1 (de)
CN (1) CN1146887C (de)
DE (1) DE69612572T2 (de)
WO (1) WO1997015923A1 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6744707B1 (en) * 1996-06-18 2004-06-01 Matsushita Electric Industrial Co., Ltd. Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same
US7203138B2 (en) * 1996-06-18 2007-04-10 Matsushita Electric Industrial Co., Ltd. Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same
US6185167B1 (en) * 1997-06-30 2001-02-06 Matsushita Electric Industrial Co., Ltd. Optical head and information recording and reproduction apparatus
CN1112685C (zh) * 1998-04-14 2003-06-25 德国汤姆森-布兰特有限公司 读写光学记录介质的设备
JP2000339717A (ja) * 1999-05-31 2000-12-08 Matsushita Electric Ind Co Ltd 光ディスク記録再生装置
EP1085509A3 (de) * 1999-09-16 2007-01-31 Samsung Electronics Co., Ltd. Fehlersignalerfassungsvorrichtung und Wiedergabesignalerfassungsvorrichtung eines optischen Aufzeichnungs-/Wiedergabesystems
JP4006904B2 (ja) * 1999-09-29 2007-11-14 ソニー株式会社 光ヘッド、光検出素子、光情報記録再生装置および焦点誤差検出方法
US6882605B1 (en) * 1999-11-16 2005-04-19 Matsushita Electric Industrial Co., Ltd. Focusing method, method of detecting focal point deviation, method of forming master of data storage medium, focusing control unit, unit for detecting focal point deviation, and unit for forming master of data storage medium
CN1235205C (zh) 2000-06-26 2006-01-04 松下电器产业株式会社 光学头
CN100336120C (zh) * 2000-06-26 2007-09-05 松下电器产业株式会社 光学头
JP3998895B2 (ja) * 2000-08-04 2007-10-31 パイオニア株式会社 光ピックアップ装置及びチルト量検出方法
KR100464072B1 (ko) * 2000-12-29 2004-12-30 엘지전자 주식회사 광픽업의 대물렌즈 출사광 스큐 조정방법
CN100437780C (zh) * 2001-06-04 2008-11-26 松下电器产业株式会社 光拾取头及信息记录再现装置
JP2004281026A (ja) 2002-08-23 2004-10-07 Matsushita Electric Ind Co Ltd 光ピックアップヘッド装置及び光情報装置及び光情報再生方法
JP4516428B2 (ja) * 2002-11-07 2010-08-04 パナソニック株式会社 光学ヘッドおよび光学ヘッドを備えた光ディスク装置
KR100524986B1 (ko) * 2003-08-26 2005-10-31 삼성전자주식회사 광픽업 및 이를 채용한 광 기록 및/또는 재생기기
US8023368B2 (en) * 2003-10-16 2011-09-20 Panasonic Corporation Tilt sensor and optical disk drive
JP2005135539A (ja) * 2003-10-31 2005-05-26 Canon Inc 光ヘッドおよびそれを用いた光学的情報記録再生装置
US20060039253A1 (en) * 2004-08-18 2006-02-23 Sony Corporation Optical disk apparatus and method of controlling optical disk apparatus
EP1632936B1 (de) * 2004-08-31 2008-12-03 Panasonic Corporation Optischer Kopf, optische Plattenvorrichtung und integrierte Schaltungsanordnung
JP4936053B2 (ja) * 2006-03-03 2012-05-23 ソニー株式会社 光ピックアップ装置および光ディスク装置
CN101661763B (zh) * 2006-03-03 2012-10-10 索尼株式会社 光拾取装置以及光盘装置
JP4751444B2 (ja) * 2006-04-12 2011-08-17 パナソニック株式会社 光ディスク装置
US20070242575A1 (en) * 2006-04-17 2007-10-18 Toshiteru Nakamura Optical Pickup and Optical Disc Apparatus
JP2009020967A (ja) * 2007-07-12 2009-01-29 Sharp Corp 光ピックアップ装置
US20090245068A1 (en) * 2008-03-31 2009-10-01 Panasonic Corporation Optical pickup device and optical disc drive
JP5255961B2 (ja) * 2008-09-05 2013-08-07 株式会社日立メディアエレクトロニクス 光ピックアップ装置および光ディスク装置
JP2012047464A (ja) * 2010-08-24 2012-03-08 Sony Corp 微小粒子測定装置及び光軸補正方法
JP6600814B2 (ja) * 2015-03-23 2019-11-06 パナソニックＩｐマネジメント株式会社 記録装置
JP6820547B2 (ja) * 2016-03-09 2021-01-27 パナソニックＩｐマネジメント株式会社 記録再生装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5752006A (en) * 1980-08-19 1982-03-27 Olympus Optical Co Ltd Method and device for detecting focus
JPS59191143A (ja) 1983-04-15 1984-10-30 Hitachi Ltd 光学的トラツク追跡装置
DE3429382A1 (de) * 1983-08-10 1985-02-28 Canon K.K., Tokio/Tokyo Optischer kopf
JPS60253027A (ja) 1984-05-29 1985-12-13 Canon Inc 光学的情報処理装置
US4817074A (en) * 1985-12-19 1989-03-28 Nec Corporation Method and apparatus for detecting the focusing state and positioning accuracy of a light beam directed onto an optical disk tracking guide in an optical recording system
JPH0648575Y2 (ja) * 1988-09-13 1994-12-12 パイオニア株式会社 光検出器
US5036185A (en) * 1988-12-27 1991-07-30 Kabushiki Kaisha Toshiba Optical apparatus for detecting a focusing state
US5113386A (en) * 1989-10-30 1992-05-12 Eastman Kodak Company Focus and tracking error detector apparatus for optical and magneto-optical information storage systems
US5434835A (en) 1990-11-07 1995-07-18 Asahi Kogaku Kogyo Kabushiki Kaisha Optical disk apparatus
JPH04205726A (ja) 1990-11-29 1992-07-27 Ricoh Co Ltd オフセット除去装置
US5253236A (en) * 1991-10-03 1993-10-12 International Business Machines Corporation Optical beam focusing and tracking system for an optical disk information storage device
JPH05242512A (ja) * 1991-12-19 1993-09-21 Matsushita Electric Ind Co Ltd 光ディスク装置
US5742572A (en) * 1993-06-21 1998-04-21 Fujitsu Limited Optical information recording/reproducing apparatus which detects focal error
JP2664327B2 (ja) * 1993-06-21 1997-10-15 富士通株式会社 光学的ヘッド及び光学的記録再生方法
JPH07311961A (ja) * 1994-05-16 1995-11-28 Nippon Steel Corp 光ピックアップ
EP0732689B1 (de) * 1995-03-14 2002-06-12 Kabushiki Kaisha Toshiba Lichtdetektor

Also Published As

Publication number Publication date
US6275463B1 (en) 2001-08-14
EP0882292A1 (de) 1998-12-09
WO1997015923A1 (en) 1997-05-01
JPH11513835A (ja) 1999-11-24
CN1204414A (zh) 1999-01-06
KR100374451B1 (ko) 2003-05-09
CN1146887C (zh) 2004-04-21
US20010055248A1 (en) 2001-12-27
JP3590637B2 (ja) 2004-11-17
US6438091B2 (en) 2002-08-20
DE69612572D1 (de) 2001-05-23
KR19990067081A (ko) 1999-08-16
EP0882292B1 (de) 2001-04-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

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