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 PDFInfo
- 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
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
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/596,936 US20100046353A1 (en) | 2007-04-25 | 2008-04-08 | Optical recording medium, optical head device and optical information recording/reproducing device |
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 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007116228 | 2007-04-25 | ||
JP2007-116228 | 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)
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)
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)
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 |
-
2008
- 2008-04-08 US US12/596,936 patent/US20100046353A1/en not_active Abandoned
- 2008-04-08 WO PCT/JP2008/056934 patent/WO2008132994A1/ja active Application Filing
- 2008-04-08 JP JP2009511760A patent/JPWO2008132994A1/ja active Pending
Patent Citations (4)
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)
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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