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WO2008142964A1 - 光学情報記録媒体及び光学情報再生装置，光学情報再生方法，光学情報再生用プログラム - Google Patents

光学情報記録媒体及び光学情報再生装置，光学情報再生方法，光学情報再生用プログラム Download PDF

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Publication number
WO2008142964A1
WO2008142964A1 PCT/JP2008/058239 JP2008058239W WO2008142964A1 WO 2008142964 A1 WO2008142964 A1 WO 2008142964A1 JP 2008058239 W JP2008058239 W JP 2008058239W WO 2008142964 A1 WO2008142964 A1 WO 2008142964A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical information
information reproducing
recording medium
reflectance
super
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.)
Ceased
Application number
PCT/JP2008/058239
Other languages
English (en)
French (fr)
Inventor
Kazuhiko Aoki
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.)
NEC Corp
Original Assignee
NEC Corp
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 Corp filed Critical NEC Corp
Priority to JP2009515125A priority Critical patent/JP5229222B2/ja
Publication of WO2008142964A1 publication Critical patent/WO2008142964A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

【課題】超解像再生方式において、情報再生時には集光スポット内の開口以外の領域の光反射率が０に近い値となるようにして、背景光起因のノイズを抑制すると同時に、高強度のレーザ光を照射し続けることによるレーザ光自身や光ディスクの劣化を抑制する。 【解決手段】光学情報記録媒体１０を、透明基板１１の記録ピット面上に、複数の超解像膜層からなる反射制御膜層１７を積層して構成し、この反射制御膜層１７を、照射光に対する光反射率が常温からの温度上昇にしたがって連続的に低下し変位点温度で急峻に増大するよう構成する。
PCT/JP2008/058239 2007-05-17 2008-04-30 光学情報記録媒体及び光学情報再生装置，光学情報再生方法，光学情報再生用プログラム Ceased WO2008142964A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009515125A JP5229222B2 (ja) 2007-05-17 2008-04-30 光学情報記録媒体及び光学情報再生装置，光学情報再生方法，光学情報再生用プログラム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007132114 2007-05-17
JP2007-132114 2007-05-17

Publications (1)

Publication Number Publication Date
WO2008142964A1 true WO2008142964A1 (ja) 2008-11-27

Family

ID=40031680

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/058239 Ceased WO2008142964A1 (ja) 2007-05-17 2008-04-30 光学情報記録媒体及び光学情報再生装置，光学情報再生方法，光学情報再生用プログラム

Country Status (2)

Country Link
JP (1) JP5229222B2 (ja)
WO (1) WO2008142964A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010106972A1 (ja) * 2009-03-18 2010-09-23 日本電気株式会社 光学情報記録媒体
JP2010218608A (ja) * 2009-03-16 2010-09-30 Hitachi Ltd 光情報記録再生方法及び装置及び媒体

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005124753A1 (en) * 2004-05-17 2005-12-29 Samsung Electronic Co., Ltd. Information storage medium having super resolution structure
WO2007135827A1 (ja) * 2006-05-23 2007-11-29 Nec Corporation 光学情報記録媒体、光学情報再生方法および光学情報再生装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005124753A1 (en) * 2004-05-17 2005-12-29 Samsung Electronic Co., Ltd. Information storage medium having super resolution structure
WO2007135827A1 (ja) * 2006-05-23 2007-11-29 Nec Corporation 光学情報記録媒体、光学情報再生方法および光学情報再生装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010218608A (ja) * 2009-03-16 2010-09-30 Hitachi Ltd 光情報記録再生方法及び装置及び媒体
WO2010106972A1 (ja) * 2009-03-18 2010-09-23 日本電気株式会社 光学情報記録媒体
US8426005B2 (en) 2009-03-18 2013-04-23 Nec Corporation Optical information recording medium

Also Published As

Publication number Publication date
JPWO2008142964A1 (ja) 2010-08-05
JP5229222B2 (ja) 2013-07-03

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