DE602005017466D1 - Vorrichtung zur wiedergabe eines signals aus einem mehrschichtigen optischen datenträger - Google Patents

Vorrichtung zur wiedergabe eines signals aus einem mehrschichtigen optischen datenträger

Info

Publication number
DE602005017466D1
DE602005017466D1 DE602005017466T DE602005017466T DE602005017466D1 DE 602005017466 D1 DE602005017466 D1 DE 602005017466D1 DE 602005017466 T DE602005017466 T DE 602005017466T DE 602005017466 T DE602005017466 T DE 602005017466T DE 602005017466 D1 DE602005017466 D1 DE 602005017466D1
Authority
DE
Germany
Prior art keywords
reproducing
signal
data carrier
optical data
multilayer optical
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
DE602005017466T
Other languages
English (en)
Inventor
Tetsuya Ogata
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of DE602005017466D1 publication Critical patent/DE602005017466D1/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
    • G11B7/135—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
    • G11B7/12—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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
DE602005017466T 2004-02-16 2005-02-09 Vorrichtung zur wiedergabe eines signals aus einem mehrschichtigen optischen datenträger Active DE602005017466D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004037814A JP4557281B2 (ja) 2004-02-16 2004-02-16 光ピックアップ装置及び光ディスク装置
PCT/JP2005/002362 WO2005078714A1 (en) 2004-02-16 2005-02-09 Apparatus for reproducing signal from multi-layered optical disk

Publications (1)

Publication Number Publication Date
DE602005017466D1 true DE602005017466D1 (de) 2009-12-17

Family

ID=34857786

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005017466T Active DE602005017466D1 (de) 2004-02-16 2005-02-09 Vorrichtung zur wiedergabe eines signals aus einem mehrschichtigen optischen datenträger

Country Status (6)

Country Link
US (1) US7852733B2 (de)
EP (1) EP1716563B1 (de)
JP (1) JP4557281B2 (de)
CN (1) CN100435225C (de)
DE (1) DE602005017466D1 (de)
WO (1) WO2005078714A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100803992B1 (ko) 2005-03-02 2008-02-18 가부시키가이샤 리코 광학계, 광 픽업 장치 및 광 디스크 장치
US8068403B2 (en) 2005-10-14 2011-11-29 Panasonic Corporation Optical head
JP4618725B2 (ja) 2005-11-08 2011-01-26 株式会社リコー 光ピックアップ装置及び光ディスク装置
US8014256B2 (en) 2006-03-30 2011-09-06 Pioneer Corporation Optical pickup and information device
US20090274029A1 (en) * 2006-03-30 2009-11-05 Masataka Izawa Optical pickup and information device
US8072868B2 (en) 2006-03-30 2011-12-06 Pioneer Corporation Optical pickup and information device for reducing an influence of stray light in an information recording medium
JP4726255B2 (ja) 2006-03-30 2011-07-20 パイオニア株式会社 光ピックアップ及び情報機器
JP4842209B2 (ja) 2006-08-22 2011-12-21 株式会社リコー 抽出光学系、光ピックアップ及び光ディスク装置
WO2009050940A1 (ja) 2007-10-18 2009-04-23 Mitsubishi Electric Corporation 抽出光学系およびそれを備える光ヘッド装置
JP5040028B2 (ja) * 2007-12-05 2012-10-03 株式会社リコー 多層情報記録媒体・層判別方法
JP5078743B2 (ja) * 2008-05-15 2012-11-21 三洋電機株式会社 光ピックアップ装置および光メモリドライブ装置
JP5617561B2 (ja) 2010-11-25 2014-11-05 株式会社リコー 撮像装置

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59221835A (ja) * 1983-05-31 1984-12-13 Sony Corp フオ−カス誤差検出装置
JPS62192939A (ja) 1986-02-20 1987-08-24 Nec Corp 光ヘツド
US5161139A (en) * 1989-01-06 1992-11-03 Kabushiki Kaisha Toshiba Focusing error detecting apparatus
US5453962A (en) * 1992-08-20 1995-09-26 Mitsubishi Denki Kabushiki Kaisha Focus error detecting device
CN1071917C (zh) 1994-12-28 2001-09-26 索尼公司 光拾波装置
JP3511734B2 (ja) * 1995-05-31 2004-03-29 ソニー株式会社 光学ピックアップ装置
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
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
CN1257496C (zh) * 1996-07-31 2006-05-24 三洋电机株式会社 光盘装置
TW336311B (en) * 1997-10-15 1998-07-11 Ind Tech Res Inst Method and device for focusing and tracking of an optical head
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
EP1155406A1 (de) * 1999-02-12 2001-11-21 Tri D Store IP, L.L.C. Auf inkohärentes signal basiertes mehrschichtiges optisches informationsaufzeichnungsmedium
JP2001034999A (ja) * 1999-05-14 2001-02-09 Fujitsu Ltd 光情報記憶装置および光学素子
JP2001273640A (ja) 2000-03-28 2001-10-05 Hitachi Ltd 光情報記録再生装置
JP3805194B2 (ja) 2000-12-07 2006-08-02 株式会社日立製作所 光学情報再生装置
US7016269B2 (en) 2000-12-21 2006-03-21 Pioneer Corporation Optical pickup apparatus and focusing control method
JP2002298345A (ja) 2001-03-30 2002-10-11 Ricoh Co Ltd 光ディスク表裏判定装置
US20030214898A1 (en) 2002-04-15 2003-11-20 Tetsuya Ogata Optical pickup device and optical disk drive using the same
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
JP4268568B2 (ja) * 2003-06-13 2009-05-27 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情報処理装置
JP4276516B2 (ja) * 2003-10-20 2009-06-10 パイオニア株式会社 多層光記録媒体および光ピックアップ装置
US7738340B2 (en) 2003-11-27 2010-06-15 Ricoh Company, Ltd. Optical disk apparatus with aberration correcting part, and optical disk

Also Published As

Publication number Publication date
EP1716563A4 (de) 2009-01-21
US7852733B2 (en) 2010-12-14
CN100435225C (zh) 2008-11-19
JP4557281B2 (ja) 2010-10-06
WO2005078714A1 (en) 2005-08-25
US20080239891A1 (en) 2008-10-02
CN1918642A (zh) 2007-02-21
EP1716563A1 (de) 2006-11-02
JP2005228436A (ja) 2005-08-25
EP1716563B1 (de) 2009-11-04

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Legal Events

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