JP2002358677A - 光ヘッド及び光ディスク装置 - Google Patents

光ヘッド及び光ディスク装置

Info

Publication number
JP2002358677A
JP2002358677A JP2001159110A JP2001159110A JP2002358677A JP 2002358677 A JP2002358677 A JP 2002358677A JP 2001159110 A JP2001159110 A JP 2001159110A JP 2001159110 A JP2001159110 A JP 2001159110A JP 2002358677 A JP2002358677 A JP 2002358677A
Authority
JP
Japan
Prior art keywords
signal
light
tracking
defocus
spherical aberration
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.)
Pending
Application number
JP2001159110A
Other languages
English (en)
Japanese (ja)
Other versions
JP2002358677A5 (enExample
Inventor
Tetsuo Ariyoshi
哲夫 有▲吉▼
Mariko Umeda
麻理子 梅田
Takeshi Shimano
健 島野
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2001159110A priority Critical patent/JP2002358677A/ja
Priority to CNB011412917A priority patent/CN1244093C/zh
Priority to US09/921,142 priority patent/US6807133B2/en
Publication of JP2002358677A publication Critical patent/JP2002358677A/ja
Priority to US10/934,384 priority patent/US7068572B2/en
Publication of JP2002358677A5 publication Critical patent/JP2002358677A5/ja
Pending 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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • 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
    • G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs
    • 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
    • G11B7/0948—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 detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
    • 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
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • G11B7/1369—Active plates, e.g. liquid crystal panels or electrostrictive 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
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13925—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means
    • G11B7/13927—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means during transducing, e.g. to correct for variation of the spherical aberration due to disc tilt or irregularities in the cover layer thickness
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
JP2001159110A 2001-05-28 2001-05-28 光ヘッド及び光ディスク装置 Pending JP2002358677A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2001159110A JP2002358677A (ja) 2001-05-28 2001-05-28 光ヘッド及び光ディスク装置
CNB011412917A CN1244093C (zh) 2001-05-28 2001-08-03 光学头和光盘装置
US09/921,142 US6807133B2 (en) 2001-05-28 2001-08-03 Optical head and optical disk apparatus
US10/934,384 US7068572B2 (en) 2001-05-28 2004-09-07 Optical head and optical disk apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001159110A JP2002358677A (ja) 2001-05-28 2001-05-28 光ヘッド及び光ディスク装置

Publications (2)

Publication Number Publication Date
JP2002358677A true JP2002358677A (ja) 2002-12-13
JP2002358677A5 JP2002358677A5 (enExample) 2005-09-02

Family

ID=19002749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001159110A Pending JP2002358677A (ja) 2001-05-28 2001-05-28 光ヘッド及び光ディスク装置

Country Status (3)

Country Link
US (2) US6807133B2 (enExample)
JP (1) JP2002358677A (enExample)
CN (1) CN1244093C (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004038708A1 (ja) * 2002-10-10 2004-05-06 Matsushita Electric Industrial Co., Ltd. 光学ヘッドおよび光ディスク装置
WO2006088055A1 (ja) * 2005-02-16 2006-08-24 Nec Corporation 光ヘッド装置およびその光ヘッド装置を搭載する光学式情報記録再生装置
JP2008084417A (ja) * 2006-09-27 2008-04-10 Funai Electric Co Ltd 光ディスク装置
US7622696B2 (en) 2005-03-02 2009-11-24 Nec Corporation Optical head device, optical information recording/reproducing apparatus and operation method of optical information recording/reproducing apparatus
US7948854B2 (en) 2005-10-28 2011-05-24 Nec Corporation Optical head apparatus and optical information recording/reproducing apparatus

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002021520A1 (en) * 2000-09-06 2002-03-14 Hitachi, Ltd. Optical head and optical disk device
JP2002358677A (ja) * 2001-05-28 2002-12-13 Hitachi Ltd 光ヘッド及び光ディスク装置
US7283435B2 (en) * 2001-07-05 2007-10-16 Matsushita Electric Industrial Co., Ltd. Optical disc device
KR100788650B1 (ko) * 2001-10-13 2007-12-26 삼성전자주식회사 고밀도 디스크
JP3819756B2 (ja) * 2001-10-23 2006-09-13 富士通株式会社 光情報処理装置
DE60330817D1 (de) * 2002-02-27 2010-02-11 Ricoh Kk Optischer Lesekopf und optische Informationsverarbeitungsvorrichtung
KR20030071454A (ko) * 2002-02-27 2003-09-03 삼성전자주식회사 마크 기록장치 및 방법
US7193955B2 (en) * 2003-03-20 2007-03-20 Matsushita Electric Industrial Co., Ltd. Optical head device and optical information reproducing device
KR101049985B1 (ko) * 2003-08-07 2011-07-19 파나소닉 주식회사 광학적 정보 기록 매체와 그 제조 방법, 제조 장치, 기록재생 방법 및 기록 재생 장치
US7406007B2 (en) * 2003-09-02 2008-07-29 Matsushita Electric Industrial Co., Ltd. Optical disc apparatus and spherical aberration correction controlling apparatus
JP4042682B2 (ja) * 2003-11-10 2008-02-06 船井電機株式会社 光ヘッド装置
JP4466950B2 (ja) * 2004-02-16 2010-05-26 パイオニア株式会社 ホログラム記録装置
JP4536478B2 (ja) * 2004-02-18 2010-09-01 株式会社リコー 光記録媒体チルト補償装置及びチルト補償方法とこれを用いる光記録装置及び光再生装置
JP4204997B2 (ja) * 2004-02-23 2009-01-07 株式会社リコー チルト補償装置及びチルト補償方法とこれを用いる光記録再生装置
DE602005007229D1 (de) * 2004-06-29 2008-07-10 Koninkl Philips Electronics Nv Verfahren und system zur erzeugung von sphärischen aberrationssignalfehlern
JP4177298B2 (ja) * 2004-07-08 2008-11-05 シャープ株式会社 フォーカス誤差検出装置およびそれを備える光ピックアップ装置
JP4083720B2 (ja) * 2004-09-17 2008-04-30 シャープ株式会社 光ピックアップ装置
JPWO2006035950A1 (ja) * 2004-09-27 2008-05-15 ソニー株式会社 光ピックアップ、光ディスク装置及び光ピックアップの製造方法
JP2006134498A (ja) * 2004-11-08 2006-05-25 Canon Inc 光学的情報記録再生装置
JP4522829B2 (ja) * 2004-11-22 2010-08-11 株式会社リコー 光ピックアップ及び補正用収差発生方法とこれを用いた光情報処理装置
JP4302642B2 (ja) * 2005-01-14 2009-07-29 シャープ株式会社 光学ヘッドおよびディスク再生装置
KR100611246B1 (ko) * 2005-02-07 2006-08-10 삼성전자주식회사 광디스크 재생 및 기록장치 및 그 방법
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
JP4527591B2 (ja) * 2005-04-15 2010-08-18 株式会社日立製作所 情報記録再生方法及び情報記録再生装置
JP4348741B2 (ja) * 2005-06-27 2009-10-21 日本電気株式会社 光学的情報記録媒体及び光学的情報再生装置
KR100717020B1 (ko) 2005-08-16 2007-05-10 삼성전자주식회사 기록층의 두께 변화에 따른 구면 수차를 탐지하고 보상하는광픽업 장치
JP4445913B2 (ja) * 2005-09-15 2010-04-07 株式会社日立製作所 光ピックアップ及びその調整方法
JP2007080466A (ja) * 2005-09-16 2007-03-29 Toshiba Corp 光ヘッド装置及び光ディスク装置
JP4410177B2 (ja) * 2005-09-21 2010-02-03 株式会社日立製作所 情報記録再生方法及び情報記録再生装置
JP2007133967A (ja) * 2005-11-10 2007-05-31 Canon Inc 光学式情報記録再生装置
JP2007141284A (ja) * 2005-11-15 2007-06-07 Funai Electric Co Ltd 光ピックアップ
JP4527657B2 (ja) * 2005-11-30 2010-08-18 株式会社日立メディアエレクトロニクス 情報再生装置
JP5039357B2 (ja) * 2006-02-14 2012-10-03 株式会社リコー ブラシレスモータの駆動制御装置、画像読取装置及び画像形成装置
JP2008052823A (ja) * 2006-08-24 2008-03-06 Funai Electric Co Ltd 球面収差補正装置
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
JP4840167B2 (ja) * 2007-01-31 2011-12-21 船井電機株式会社 光ディスク装置
JP2008276860A (ja) * 2007-04-27 2008-11-13 Hitachi Media Electoronics Co Ltd 光ピックアップ装置及び光ディスクドライブ
JP2009266285A (ja) * 2008-04-23 2009-11-12 Sony Corp 光情報記録装置、光情報記録方法、光情報再生装置、光情報再生方法及び光情報記録媒体
JP4489131B2 (ja) * 2008-07-31 2010-06-23 株式会社東芝 収差補正素子、光ヘッド及び光ディスク装置
JP2010277674A (ja) * 2009-04-27 2010-12-09 Sanyo Electric Co Ltd 光ディスク装置およびレンズ制御方法
US20110002117A1 (en) * 2009-06-16 2011-01-06 Panasonic Corporation Optical disc drive
JP5227926B2 (ja) * 2009-09-16 2013-07-03 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
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
JP2013025828A (ja) * 2011-07-15 2013-02-04 Hitachi Media Electoronics Co Ltd フォーカスエラー信号生成方法、フォーカスエラー信号生成装置、光学ヘッド、光学ドライブ装置

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KR100483599B1 (ko) * 1997-06-30 2005-09-14 마츠시타 덴끼 산교 가부시키가이샤 광학헤드및정보기록재생장치
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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
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004038708A1 (ja) * 2002-10-10 2004-05-06 Matsushita Electric Industrial Co., Ltd. 光学ヘッドおよび光ディスク装置
JPWO2004038708A1 (ja) * 2002-10-10 2006-02-23 松下電器産業株式会社 光学ヘッドおよび光ディスク装置
JP4549860B2 (ja) * 2002-10-10 2010-09-22 パナソニック株式会社 光学ヘッド
WO2006088055A1 (ja) * 2005-02-16 2006-08-24 Nec Corporation 光ヘッド装置およびその光ヘッド装置を搭載する光学式情報記録再生装置
US7622696B2 (en) 2005-03-02 2009-11-24 Nec Corporation Optical head device, optical information recording/reproducing apparatus and operation method of optical information recording/reproducing apparatus
US7948854B2 (en) 2005-10-28 2011-05-24 Nec Corporation Optical head apparatus and optical information recording/reproducing apparatus
JP2008084417A (ja) * 2006-09-27 2008-04-10 Funai Electric Co Ltd 光ディスク装置
US7499381B2 (en) 2006-09-27 2009-03-03 Funai Electric Co., Ltd. Optical disk apparatus

Also Published As

Publication number Publication date
US6807133B2 (en) 2004-10-19
US20050025000A1 (en) 2005-02-03
CN1244093C (zh) 2006-03-01
US20020176331A1 (en) 2002-11-28
US7068572B2 (en) 2006-06-27
CN1388523A (zh) 2003-01-01

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