DE602004015003D1 - Optisches Abtastgerät und optisches Plattenlaufwerk - Google Patents

Optisches Abtastgerät und optisches Plattenlaufwerk

Info

Publication number
DE602004015003D1
DE602004015003D1 DE602004015003T DE602004015003T DE602004015003D1 DE 602004015003 D1 DE602004015003 D1 DE 602004015003D1 DE 602004015003 T DE602004015003 T DE 602004015003T DE 602004015003 T DE602004015003 T DE 602004015003T DE 602004015003 D1 DE602004015003 D1 DE 602004015003D1
Authority
DE
Germany
Prior art keywords
disk drive
optical
scanning device
optical disk
optical scanning
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
DE602004015003T
Other languages
English (en)
Inventor
Masahiko Nakayama
Hiroshi Akiyama
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
Priority claimed from JP2003032204A external-priority patent/JP3754422B2/ja
Priority claimed from JP2003040898A external-priority patent/JP4223296B2/ja
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of DE602004015003D1 publication Critical patent/DE602004015003D1/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
    • G11B7/13—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
    • G11B7/08—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
    • G11B7/12—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
    • G11B7/1353—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
    • G11B7/12—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
    • 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
    • G11B7/1395—Beam splitters or combiners
    • 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
    • G11B7/12—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
    • G11B2007/13727—Compound lenses, i.e. two or more lenses co-operating to perform a function, e.g. compound objective lens including a solid immersion lens, positive and negative lenses either bonded together or with adjustable spacing
DE602004015003T 2003-01-29 2004-01-28 Optisches Abtastgerät und optisches Plattenlaufwerk Expired - Lifetime DE602004015003D1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2003020440 2003-01-29
JP2003032204A JP3754422B2 (ja) 2003-01-29 2003-02-10 光ピックアップ装置および光ディスクドライブ装置
JP2003032198 2003-02-10
JP2003040898A JP4223296B2 (ja) 2003-02-10 2003-02-19 光ピックアップ装置および光ディスクドライブ装置

Publications (1)

Publication Number Publication Date
DE602004015003D1 true DE602004015003D1 (de) 2008-08-28

Family

ID=32660054

Family Applications (2)

Application Number Title Priority Date Filing Date
DE602004026372T Expired - Lifetime DE602004026372D1 (de) 2003-01-29 2004-01-28 Optische Lesekopfvorrichtung und optisches Plattengerät
DE602004015003T Expired - Lifetime DE602004015003D1 (de) 2003-01-29 2004-01-28 Optisches Abtastgerät und optisches Plattenlaufwerk

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE602004026372T Expired - Lifetime DE602004026372D1 (de) 2003-01-29 2004-01-28 Optische Lesekopfvorrichtung und optisches Plattengerät

Country Status (4)

Country Link
US (2) US7359295B2 (de)
EP (2) EP1443505B1 (de)
DE (2) DE602004026372D1 (de)
ES (1) ES2309460T3 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602004026372D1 (de) * 2003-01-29 2010-05-12 Ricoh Kk Optische Lesekopfvorrichtung und optisches Plattengerät
JP4234476B2 (ja) 2003-03-28 2009-03-04 シャープ株式会社 光ピックアップ装置
JP3989889B2 (ja) * 2003-09-19 2007-10-10 株式会社リコー 収差調整装置、光ピックアップ、プログラム、及び記憶媒体
JP4311732B2 (ja) * 2004-04-13 2009-08-12 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
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
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
JP4533349B2 (ja) * 2005-07-29 2010-09-01 シャープ株式会社 光ピックアップ装置
JP4205084B2 (ja) * 2005-08-26 2009-01-07 シャープ株式会社 光ピックアップ
US20090028036A1 (en) * 2006-03-14 2009-01-29 Matsushita Electric Industrial Co., Ltd. Optical disc device
ATE509348T1 (de) * 2006-07-05 2011-05-15 Daewoo Electronics Corp Vorrichtung und verfahren zur verarbeitung von optischen informationen
JP5099014B2 (ja) * 2006-11-16 2012-12-12 日本電気株式会社 光ヘッド装置および光学式情報記録再生装置
JP4768655B2 (ja) * 2007-03-19 2011-09-07 シャープ株式会社 光ピックアップ装置
USD742770S1 (en) 2014-01-06 2015-11-10 Greenwave Systems Pte. Ltd. Enclosure for electronic device
US11579014B1 (en) * 2020-08-20 2023-02-14 Amazon Technologies, Inc. Optical detector system

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0646463B2 (ja) 1985-04-15 1994-06-15 キヤノン株式会社 光ピツクアツプ装置
JPH0795372B2 (ja) 1984-06-27 1995-10-11 キヤノン株式会社 光ヘツド装置
US4733065A (en) 1984-06-27 1988-03-22 Canon Kabushiki Kaisha Optical head device with diffraction grating for separating a light beam incident on an optical recording medium from a light beam reflected therefrom
JP2594445B2 (ja) 1987-12-04 1997-03-26 日本電気ホームエレクトロニクス株式会社 ホログラム光ヘッド
US5050153A (en) 1989-06-06 1991-09-17 Wai-Hon Lee Semiconductor laser optical head assembly
US5303225A (en) * 1989-10-30 1994-04-12 Matsushita Electrical Industrial Co., Ltd. Multi-layered optical disk with track and layer identification
JPH043013A (ja) 1990-04-20 1992-01-08 Fujitsu General Ltd Ｐｌｚｔ光シャッタアレー装置
JPH05120726A (ja) 1991-10-25 1993-05-18 Nec Corp 光学式情報記録再生装置
JP2776487B2 (ja) 1992-01-28 1998-07-16 シャープ株式会社 光学式情報記録再生装置
DE69608750T2 (de) * 1995-03-15 2001-02-15 Koninkl Philips Electronics Nv Vorrichtung zum optischen abtasten eines auzeichnungsmediums
JP2505984B2 (ja) 1995-04-19 1996-06-12 キヤノン株式会社 光ヘッド装置
US5917800A (en) * 1996-04-26 1999-06-29 Daewoo Electronics Co., Ltd. Optical pickup device for reproducing discs of two types with different densities by double beam focuses of different sizes
US6091690A (en) * 1997-02-06 2000-07-18 Matsushita Electric Industrial Co., Ltd. Optical head device and optical information processing apparatus
JP3889104B2 (ja) * 1997-02-07 2007-03-07 シャープ株式会社 光ピックアップ装置
JPH10241188A (ja) * 1997-02-24 1998-09-11 Sanyo Electric Co Ltd 光ピックアップ装置およびそれを備えた光学記録媒体駆動装置
US6304540B1 (en) * 1998-03-30 2001-10-16 Samsung Electronics Co., Ltd. Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens
US20010050892A1 (en) * 1997-07-11 2001-12-13 Yoshitaka Takahashi Optical disk apparatus compatible with different types of mediums
JP3697875B2 (ja) * 1997-12-25 2005-09-21 ソニー株式会社 光学ピックアップ及び光ディスク装置
JPH11353698A (ja) 1998-06-05 1999-12-24 Ricoh Co Ltd 光ピックアップ装置
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
EP1046161A1 (de) * 1998-09-21 2000-10-25 Koninklijke Philips Electronics N.V. Vorrichtung zum abtasten eines optischen aufzeichnungsträgers mit mindestens zwei informationsschichten
CN1327423C (zh) * 1998-11-09 2007-07-18 松下电器产业株式会社 光信息处理装置和光学元件
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
JP3662519B2 (ja) 2000-07-13 2005-06-22 シャープ株式会社 光ピックアップ
US6757224B2 (en) * 2000-09-29 2004-06-29 Matsushita Electric Industrial Co., Ltd. Integrated optical component and optical pick-up device
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
JP2002197686A (ja) * 2000-12-21 2002-07-12 Sharp Corp 光ピックアップ装置
JP2002251753A (ja) 2001-02-23 2002-09-06 Ricoh Co Ltd エラー検出方法・エラー検出装置・戻り光束分割光学素子・光ピックアップ装置および光情報処理装置
JP2002319151A (ja) * 2001-04-24 2002-10-31 Sharp Corp 光ピックアップ装置
JP3930784B2 (ja) * 2001-09-17 2007-06-13 シャープ株式会社 傾斜量検出装置
JP2004127482A (ja) * 2002-08-07 2004-04-22 Sharp Corp 光ピックアップ装置
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
EP1553570B1 (de) * 2002-10-10 2008-10-08 Matsushita Electric Industrial Co., Ltd. Optischer kopf und optische datenträgereinheit
DE602004026372D1 (de) * 2003-01-29 2010-05-12 Ricoh Kk Optische Lesekopfvorrichtung und optisches Plattengerät
JP4234476B2 (ja) * 2003-03-28 2009-03-04 シャープ株式会社 光ピックアップ装置

Also Published As

Publication number Publication date
EP1939870B1 (de) 2010-03-31
EP1443505A2 (de) 2004-08-04
US20080165657A1 (en) 2008-07-10
US20040184383A1 (en) 2004-09-23
EP1443505A3 (de) 2007-01-10
US8023386B2 (en) 2011-09-20
EP1939870A1 (de) 2008-07-02
EP1443505B1 (de) 2008-07-16
ES2309460T3 (es) 2008-12-16
US7359295B2 (en) 2008-04-15
DE602004026372D1 (de) 2010-05-12

Similar Documents

Publication Publication Date Title
DE60142279D1 (de) Optisches Abtastgerät und Plattenlaufwerk
DE60321937D1 (de) Antriebseinrichtung
DE60321928D1 (de) Antriebseinrichtung
DE60204730D1 (de) Plattenlaufwerk
DE60330114D1 (de) Plattenvorrichtung
DE50205580D1 (de) Antriebseinrichtung
DE60326194D1 (de) Optisches Plattenlaufwerk
DE602004015003D1 (de) Optisches Abtastgerät und optisches Plattenlaufwerk
DE60229080D1 (de) Optisches Plattengerät und optisches Plattenaufzeichnungsverfahren
DE50203028D1 (de) Antriebsvorrichtung
DE602005021845D1 (de) Optischer Abtastkopf und Anwendungsverfahren
DE60319728D1 (de) Aufzeichnungsverfahren und aufzeichnungsvorrichtung
DE60300563D1 (de) Optischer Verstärker und zugehöriges Ansteuerungsverfahren
DE602006005768D1 (de) Linsenantriebsvorrichtung und Bildaufnahmevorrichtung
DE602006007514D1 (de) Optische aufzeichnungsmethode und aufzeichnungsvorrichtung
DE60317953D1 (de) Optische Abtastvorrichtung
DE602004016095D1 (de) Optische Plattengerät und Steuerverfahren dazu
DE602004012015D1 (de) Verschlussvorrichtung und Plattenantriebsgerät
DE60219584D1 (de) Plattengerät
DE60307196D1 (de) Optisches Abtastgerät
DE60228911D1 (de) Plattenlaufwerk
DE602005003549D1 (de) Optisches Plattenlaufwerk und Informationsverarbeitungsvorrichtung
DE602006000570D1 (de) Optischer Lesekopf und zugehöriges Laufwerk
DE60325803D1 (de) Optisches Plattenmedium und Laufwerk
DE602004019838D1 (de) Optischer Kopf und optisches Plattenlaufwerk mit demselben

Legal Events

Date Code Title Description
8364 No opposition during term of opposition