WO2008132994A1 - 光記録媒体、光ヘッド装置及び光学式情報記録再生装置 - Google Patents

光記録媒体、光ヘッド装置及び光学式情報記録再生装置 Download PDF

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Publication number
WO2008132994A1
WO2008132994A1 PCT/JP2008/056934 JP2008056934W WO2008132994A1 WO 2008132994 A1 WO2008132994 A1 WO 2008132994A1 JP 2008056934 W JP2008056934 W JP 2008056934W WO 2008132994 A1 WO2008132994 A1 WO 2008132994A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
recording
layer
recording layer
disc
Prior art date
Application number
PCT/JP2008/056934
Other languages
English (en)
French (fr)
Inventor
Ryuichi Katayama
Original Assignee
Nec Corporation
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 Nec Corporation filed Critical Nec Corporation
Priority to JP2009511760A priority Critical patent/JPWO2008132994A1/ja
Priority to US12/596,936 priority patent/US20100046353A1/en
Publication of WO2008132994A1 publication Critical patent/WO2008132994A1/ja

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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • G11B7/24035—Recording layers
    • G11B7/24044—Recording layers for storing optical interference patterns, e.g. holograms; for storing data in three dimensions, e.g. volume storage
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0065—Recording, reproducing or erasing by using optical interference patterns, e.g. holograms

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

【課題】　光記録媒体に対して三次元的に情報の記録再生を行う場合に高品質な再生信号が得られる光ヘッド装置等を提供する。 【解決手段】　レーザ３からの出射光は偏光ビームスプリッタ７により、反射光である第一のビームと透過光である第二のビームとに分割される。第一のビームと第二のビームとは偏光方向が互いに直交している。ディスク２は記録層、１／４波長板層、反射層を有する。ディスク２への情報の記録時には、記録層内を反射層の側へ向かう第一のビームと、記録層を透過し、反射層で反射され、記録層内を反射層と反対の側へ向かう第二のビームとは同一の位置に集光される。ディスク２からの情報の再生時には、第二のビームはシャッタ９で遮断され、記録層で反射された第一のビームは光検出器２０で受光される。
PCT/JP2008/056934 2007-04-25 2008-04-08 光記録媒体、光ヘッド装置及び光学式情報記録再生装置 WO2008132994A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009511760A JPWO2008132994A1 (ja) 2007-04-25 2008-04-08 光記録媒体、光ヘッド装置及び光学式情報記録再生装置
US12/596,936 US20100046353A1 (en) 2007-04-25 2008-04-08 Optical recording medium, optical head device and optical information recording/reproducing device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-116228 2007-04-25
JP2007116228 2007-04-25

Publications (1)

Publication Number Publication Date
WO2008132994A1 true WO2008132994A1 (ja) 2008-11-06

Family

ID=39925453

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/056934 WO2008132994A1 (ja) 2007-04-25 2008-04-08 光記録媒体、光ヘッド装置及び光学式情報記録再生装置

Country Status (3)

Country Link
US (1) US20100046353A1 (ja)
JP (1) JPWO2008132994A1 (ja)
WO (1) WO2008132994A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009087993A1 (ja) * 2008-01-10 2009-07-16 Nec Corporation 光学的情報記録再生装置および光ヘッド装置、光学的情報記録再生方法
JP2010205366A (ja) * 2009-03-05 2010-09-16 Nec Corp 光学ユニットおよび光学的情報記録再生装置
JP2010257496A (ja) * 2009-04-21 2010-11-11 Nec Corp 光学的情報記録再生装置及びそれに用いる光学ユニット

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004213885A (ja) * 2004-02-27 2004-07-29 Hitachi Ltd 多層媒体
JP2004265472A (ja) * 2003-02-06 2004-09-24 Optware:Kk 光情報記録媒体
JP2005044512A (ja) * 2004-10-01 2005-02-17 Hitachi Ltd 情報記録媒体製造方法
JP2006235209A (ja) * 2005-02-24 2006-09-07 Fuji Photo Film Co Ltd 光情報記録装置のホログラム情報記録方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU9801029D0 (en) * 1998-05-05 1998-06-29 Optilink Ab Method and system for recording information on a holographic card
US20020150022A1 (en) * 2001-04-12 2002-10-17 Tolmachev Yurii Alexandrovich Apparatus and method for 3-D storage of information and its retrieval

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004265472A (ja) * 2003-02-06 2004-09-24 Optware:Kk 光情報記録媒体
JP2004213885A (ja) * 2004-02-27 2004-07-29 Hitachi Ltd 多層媒体
JP2005044512A (ja) * 2004-10-01 2005-02-17 Hitachi Ltd 情報記録媒体製造方法
JP2006235209A (ja) * 2005-02-24 2006-09-07 Fuji Photo Film Co Ltd 光情報記録装置のホログラム情報記録方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009087993A1 (ja) * 2008-01-10 2009-07-16 Nec Corporation 光学的情報記録再生装置および光ヘッド装置、光学的情報記録再生方法
JP5278334B2 (ja) * 2008-01-10 2013-09-04 日本電気株式会社 光学的情報記録再生装置および光ヘッド装置、光学的情報記録再生方法
JP2010205366A (ja) * 2009-03-05 2010-09-16 Nec Corp 光学ユニットおよび光学的情報記録再生装置
JP2010257496A (ja) * 2009-04-21 2010-11-11 Nec Corp 光学的情報記録再生装置及びそれに用いる光学ユニット

Also Published As

Publication number Publication date
JPWO2008132994A1 (ja) 2010-07-22
US20100046353A1 (en) 2010-02-25

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