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WO2009063633A1 - 光記録媒体 - Google Patents

光記録媒体 Download PDF

Info

Publication number
WO2009063633A1
WO2009063633A1 PCT/JP2008/003294 JP2008003294W WO2009063633A1 WO 2009063633 A1 WO2009063633 A1 WO 2009063633A1 JP 2008003294 W JP2008003294 W JP 2008003294W WO 2009063633 A1 WO2009063633 A1 WO 2009063633A1
Authority
WO
WIPO (PCT)
Prior art keywords
recording layer
information recording
reproduction
recording medium
information
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/JP2008/003294
Other languages
English (en)
French (fr)
Inventor
Takashi Kikukawa
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to CN200880116069.3A priority Critical patent/CN101868824B/zh
Priority to EP08848789A priority patent/EP2216779A4/en
Publication of WO2009063633A1 publication Critical patent/WO2009063633A1/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
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • G11B7/24035—Recording layers
    • G11B7/24038—Multiple laminated recording layers

Landscapes

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

Abstract

　波長λが４００～４１０ｎｍとなるレーザー光を、開口数ＮＡが０．８～０．９となる光学系を介して情報記録層に照射することで記録再生が可能な光記録媒体であって、この情報記録層として、予め情報が記録された再生専用情報記録層と、再生専用情報記録層とは別の層であって追記型又は書換型による情報記録が可能な情報記録層とを少なくとも備えるようにした。更に、再生専用情報記録層は、レーザー光の光入射面から最も近い位置に配置した。この結果、再生専用情報記録層と情報記録層の双方を有する各種光記録媒体の記録再生特性を向上させることができる。
PCT/JP2008/003294 2007-11-14 2008-11-12 光記録媒体 Ceased WO2009063633A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200880116069.3A CN101868824B (zh) 2007-11-14 2008-11-12 光记录介质
EP08848789A EP2216779A4 (en) 2007-11-14 2008-11-12 OPTICAL RECORDING MEDIUM

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007295772A JP2009123278A (ja) 2007-11-14 2007-11-14 光記録媒体
JP2007-295772 2007-11-14

Publications (1)

Publication Number Publication Date
WO2009063633A1 true WO2009063633A1 (ja) 2009-05-22

Family

ID=40623605

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/003294 Ceased WO2009063633A1 (ja) 2007-11-14 2008-11-12 光記録媒体

Country Status (5)

Country Link
US (1) US8009548B2 (ja)
EP (1) EP2216779A4 (ja)
JP (1) JP2009123278A (ja)
CN (1) CN101868824B (ja)
WO (1) WO2009063633A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116075386B (zh) * 2020-08-14 2025-10-28 陶瓷数据解决方案有限公司 用于使用激光器、检流计和数字微镜在第一材料的层(10)上或中高速记录数据的方法和装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002304730A (ja) * 2001-04-06 2002-10-18 Hitachi Ltd 多層ディスクおよびその記録再生方法
JP2006155859A (ja) * 2004-10-25 2006-06-15 Matsushita Electric Ind Co Ltd 光ディスク装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4059714B2 (ja) * 2002-07-04 2008-03-12 Ｔｄｋ株式会社 光記録媒体
AU2003277520A1 (en) * 2002-10-30 2004-05-25 Tdk Corporation Method for evaluating optical information medium and optical information medium
WO2005004130A1 (en) * 2003-07-03 2005-01-13 Koninklijke Philips Electronics N.V. Multi stack optical data storage medium and use of such medium
US7871685B2 (en) * 2004-04-08 2011-01-18 Tdk Corporation Methods for producing optical recording medium and optical recording medium
WO2007072416A2 (en) * 2005-12-23 2007-06-28 Moser Baer India Ltd. Optical storage medium
JP4625137B2 (ja) * 2007-07-11 2011-02-02 シャープ株式会社 光情報記録媒体

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002304730A (ja) * 2001-04-06 2002-10-18 Hitachi Ltd 多層ディスクおよびその記録再生方法
JP2006155859A (ja) * 2004-10-25 2006-06-15 Matsushita Electric Ind Co Ltd 光ディスク装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
I. ICHIMURA, APPL. OPT, vol. 45, 2006, pages 1794 - 1803
K. MISHIMA, PROC. OF SPIE, vol. 6282, 2006, pages 628201
See also references of EP2216779A4

Also Published As

Publication number Publication date
CN101868824A (zh) 2010-10-20
US8009548B2 (en) 2011-08-30
US20090122693A1 (en) 2009-05-14
JP2009123278A (ja) 2009-06-04
EP2216779A4 (en) 2012-08-08
EP2216779A1 (en) 2010-08-11
CN101868824B (zh) 2012-12-26

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