DE602006011653D1 - Lichtquelleneinheit, optische detektoreinheit, optische aufnahmeanordnung und optische datenträgereinrichtung - Google Patents

Lichtquelleneinheit, optische detektoreinheit, optische aufnahmeanordnung und optische datenträgereinrichtung

Info

Publication number
DE602006011653D1
DE602006011653D1 DE602006011653T DE602006011653T DE602006011653D1 DE 602006011653 D1 DE602006011653 D1 DE 602006011653D1 DE 602006011653 T DE602006011653 T DE 602006011653T DE 602006011653 T DE602006011653 T DE 602006011653T DE 602006011653 D1 DE602006011653 D1 DE 602006011653D1
Authority
DE
Germany
Prior art keywords
optical
discontinuating
light source
recording arrangement
unit
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
DE602006011653T
Other languages
English (en)
Inventor
Junichi Kitabayashi
Takeshi Miki
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 JP2005336097A external-priority patent/JP4683553B2/ja
Priority claimed from JP2006012763A external-priority patent/JP4925256B2/ja
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of DE602006011653D1 publication Critical patent/DE602006011653D1/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
    • G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
    • 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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/127—Lasers; Multiple laser arrays
    • 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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/127—Lasers; Multiple laser arrays
    • G11B7/1275—Two or more lasers having different wavelengths
    • 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
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13922—Means for controlling the beam wavefront, e.g. for correction of aberration passive
    • 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
DE602006011653T 2005-11-21 2006-11-20 Lichtquelleneinheit, optische detektoreinheit, optische aufnahmeanordnung und optische datenträgereinrichtung Active DE602006011653D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2005336097A JP4683553B2 (ja) 2005-11-21 2005-11-21 光源ユニット、光検出ユニット、光ピックアップ装置及び光ディスク装置
JP2006012763A JP4925256B2 (ja) 2006-01-20 2006-01-20 光源ユニット、光検出ユニット、光ピックアップ装置及び光ディスク装置
PCT/JP2006/323529 WO2007058389A1 (en) 2005-11-21 2006-11-20 Light source unit, optical detector unit, optical pickup device, and optical disk device

Publications (1)

Publication Number Publication Date
DE602006011653D1 true DE602006011653D1 (de) 2010-02-25

Family

ID=38048758

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006011653T Active DE602006011653D1 (de) 2005-11-21 2006-11-20 Lichtquelleneinheit, optische detektoreinheit, optische aufnahmeanordnung und optische datenträgereinrichtung

Country Status (5)

Country Link
US (1) US8174952B2 (de)
EP (1) EP1964120B1 (de)
KR (1) KR100942005B1 (de)
DE (1) DE602006011653D1 (de)
WO (1) WO2007058389A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080151339A1 (en) * 2006-12-21 2008-06-26 Shigeru Oouchida Light source unit and optical detection unit
US11817910B2 (en) * 2019-06-13 2023-11-14 Nec Corporation Light-receiving device

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63113947A (ja) 1986-10-31 1988-05-18 Nippon Telegr & Teleph Corp <Ntt> 多波長書込み型光学素子
JPS63146244A (ja) * 1986-12-10 1988-06-18 Hitachi Ltd 波長多重光記録装置
NL8800133A (nl) * 1988-01-21 1989-08-16 Philips Nv Inrichting voor het met optische straling aftasten van een informatievlak.
US5136572A (en) * 1990-09-10 1992-08-04 Tacan Corporation Optical data storage using temperature stabilizer lasers
JP2988732B2 (ja) 1991-01-17 1999-12-13 株式会社東芝 情報記録・再生装置
US5272550A (en) * 1991-10-11 1993-12-21 International Business Machines Corporation Hologram system
US5212572A (en) * 1991-11-22 1993-05-18 International Business Machines Corporation Optical data storage system with compact holographic polarization-sensing or reflectivity-sensing optical storage head
ATE164687T1 (de) * 1992-12-17 1998-04-15 Ibm Holographisches system und verfahren
US6151142A (en) * 1993-01-29 2000-11-21 Imedge Technology, Inc. Grazing incidence holograms and system and method for producing the same
KR100267233B1 (ko) * 1996-09-24 2000-10-16 윤종용 2광원을 이용한 홀로그램 광픽업
JP3778316B2 (ja) * 1997-05-22 2006-05-24 パイオニア株式会社 光ピックアップ装置
KR20010031135A (ko) * 1997-10-16 2001-04-16 모리시타 요이찌 홀로그램소자, 편광분리소자, 편광조명장치 및 화상표시장치
US6650612B1 (en) * 1999-03-31 2003-11-18 Matsushita Electric Industrial Co., Ltd. Optical head and recording reproduction method
US6563779B1 (en) * 1999-06-16 2003-05-13 Siros Technologies, Inc. Tracking error signal generation using confocally filtered detection
JP2001043554A (ja) 1999-07-29 2001-02-16 Ricoh Co Ltd 光ピックアップ装置
US7394842B2 (en) * 2000-01-04 2008-07-01 Research Foundation Of The University Of Central Florida, Inc. Volume bragg lasers based on high efficiency diffractive elements in photo-thermo-refractive glass
JP2002140829A (ja) * 2000-08-25 2002-05-17 Asahi Glass Co Ltd ２波長光源装置および光ヘッド装置
JP2004062971A (ja) * 2002-07-26 2004-02-26 Konica Minolta Holdings Inc 対物レンズユニット、光ピックアップ装置、及び光学式情報記録再生装置
JP2005038513A (ja) * 2003-07-15 2005-02-10 Matsushita Electric Ind Co Ltd 光再生方法、光ヘッド装置および光情報処理装置
EP1553574A1 (de) * 2004-01-08 2005-07-13 Deutsche Thomson-Brandt Gmbh Verfahren zur Ermittlung der sphärischen Aberration
JP2005203011A (ja) * 2004-01-14 2005-07-28 Pioneer Electronic Corp ２波長レーザモジュール及び光ピックアップ装置
JP2005203041A (ja) 2004-01-16 2005-07-28 Sharp Corp 光集積ユニットおよび光ピックアップ装置
JP4465200B2 (ja) * 2004-01-20 2010-05-19 Ｈｏｙａ株式会社 光ピックアップ装置および光ピックアップ用対物レンズ
US7808863B2 (en) * 2004-04-26 2010-10-05 Wai-Hon Lee Laser/detector device for optical recording with adjustable detector position
JP2006338782A (ja) 2005-06-02 2006-12-14 Ricoh Co Ltd 光ピックアップ装置と情報記録再生装置

Also Published As

Publication number Publication date
US20090046562A1 (en) 2009-02-19
EP1964120A4 (de) 2009-04-08
KR20080058500A (ko) 2008-06-25
US8174952B2 (en) 2012-05-08
KR100942005B1 (ko) 2010-02-12
WO2007058389A1 (en) 2007-05-24
EP1964120A1 (de) 2008-09-03
EP1964120B1 (de) 2010-01-06

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