WO2009044470A1 - ホログラム再生装置およびホログラム再生方法 - Google Patents
ホログラム再生装置およびホログラム再生方法 Download PDFInfo
- Publication number
- WO2009044470A1 WO2009044470A1 PCT/JP2007/069441 JP2007069441W WO2009044470A1 WO 2009044470 A1 WO2009044470 A1 WO 2009044470A1 JP 2007069441 W JP2007069441 W JP 2007069441W WO 2009044470 A1 WO2009044470 A1 WO 2009044470A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- main
- reproduction
- beams
- sub
- hologram reproducing
- Prior art date
Links
- 238000001514 detection method Methods 0.000 abstract 1
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
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00772—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track on record carriers storing information in the form of optical interference patterns, e.g. holograms
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
- G11B7/08564—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements using galvanomirrors
-
- 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
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2286—Particular reconstruction light ; Beam properties
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2202—Reconstruction geometries or arrangements
- G03H2001/2223—Particular relationship between light source, hologram and observer
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Holo Graphy (AREA)
- Optical Head (AREA)
Abstract
ホログラム再生装置は、再生時における参照光(R’)を、ホログラム記録媒体(H)に対して主たる入射方向をなすメインビーム(R0)と、これに対して空間的にずれた入射方向をなすサブビーム(R1,R2)とに分割する再生参照光分割手段(11)と、メインビーム(R0)およびサブビーム(R1,R2)の入射方向を変化させる入射方向可変照射手段(20)と、サブビーム(R1,R2)に応じて生じた再生光(P)の一部をサーボ光(P1,P2)として検出するサーボ光検出手段(50)と、メインビーム(R0)に応じて生じた再生光(P)の主部(P0)を受光する受光手段(32)と、サーボ光(P1,P2)の検出結果に基づき、参照光の光強度を一定とした場合に受光手段(32)の受光量が所定レベル以上となる入射方向にメインビーム(R0)を合わせた上で受光手段(32)により得られた像を再生する再生手段(60)とを有している。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009535928A JPWO2009044470A1 (ja) | 2007-10-04 | 2007-10-04 | ホログラム再生装置およびホログラム再生方法 |
PCT/JP2007/069441 WO2009044470A1 (ja) | 2007-10-04 | 2007-10-04 | ホログラム再生装置およびホログラム再生方法 |
US12/724,905 US20100195179A1 (en) | 2007-10-04 | 2010-03-16 | Hologram reproducing device and hologram reproducing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2007/069441 WO2009044470A1 (ja) | 2007-10-04 | 2007-10-04 | ホログラム再生装置およびホログラム再生方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/724,905 Continuation US20100195179A1 (en) | 2007-10-04 | 2010-03-16 | Hologram reproducing device and hologram reproducing method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009044470A1 true WO2009044470A1 (ja) | 2009-04-09 |
Family
ID=40525903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/069441 WO2009044470A1 (ja) | 2007-10-04 | 2007-10-04 | ホログラム再生装置およびホログラム再生方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20100195179A1 (ja) |
JP (1) | JPWO2009044470A1 (ja) |
WO (1) | WO2009044470A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014091531A1 (ja) * | 2012-12-10 | 2014-06-19 | 日立コンシューマエレクトロニクス株式会社 | 光情報再生装置及び光情報再生方法 |
WO2014167620A1 (ja) * | 2013-04-08 | 2014-10-16 | 株式会社日立製作所 | 光情報再生装置及び光情報再生方法 |
WO2015181867A1 (ja) * | 2014-05-26 | 2015-12-03 | 株式会社日立製作所 | 光情報再生装置及び光情報再生方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006155797A (ja) * | 2004-11-30 | 2006-06-15 | Fujitsu Ltd | ホログラム記録媒体 |
JP2006171589A (ja) * | 2004-12-20 | 2006-06-29 | Sony Corp | ホログラム再生装置及びホログラム再生方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007193852A (ja) * | 2004-03-30 | 2007-08-02 | Pioneer Electronic Corp | ホログラム記録担体 |
JP2005331864A (ja) * | 2004-05-21 | 2005-12-02 | Alps Electric Co Ltd | ホログラム装置 |
JPWO2007094042A1 (ja) * | 2006-02-14 | 2009-07-02 | 富士通株式会社 | ホログラム記録装置 |
-
2007
- 2007-10-04 WO PCT/JP2007/069441 patent/WO2009044470A1/ja active Application Filing
- 2007-10-04 JP JP2009535928A patent/JPWO2009044470A1/ja not_active Withdrawn
-
2010
- 2010-03-16 US US12/724,905 patent/US20100195179A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006155797A (ja) * | 2004-11-30 | 2006-06-15 | Fujitsu Ltd | ホログラム記録媒体 |
JP2006171589A (ja) * | 2004-12-20 | 2006-06-29 | Sony Corp | ホログラム再生装置及びホログラム再生方法 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014091531A1 (ja) * | 2012-12-10 | 2014-06-19 | 日立コンシューマエレクトロニクス株式会社 | 光情報再生装置及び光情報再生方法 |
US9373352B2 (en) | 2012-12-10 | 2016-06-21 | Hitachi Consumer Electronics Co., Ltd. | Optical information reproduction apparatus and optical information reproduction method |
JPWO2014091531A1 (ja) * | 2012-12-10 | 2017-01-05 | 日立コンシューマエレクトロニクス株式会社 | 光情報再生装置及び光情報再生方法 |
WO2014167620A1 (ja) * | 2013-04-08 | 2014-10-16 | 株式会社日立製作所 | 光情報再生装置及び光情報再生方法 |
CN105122365A (zh) * | 2013-04-08 | 2015-12-02 | 株式会社日立制作所 | 光信息再现装置和光信息再现方法 |
JPWO2014167620A1 (ja) * | 2013-04-08 | 2017-02-16 | 株式会社日立製作所 | 光情報再生装置及び光情報再生方法 |
US9728219B2 (en) | 2013-04-08 | 2017-08-08 | Hitachi, Ltd. | Optical information reproduction device and optical information reproduction method |
WO2015181867A1 (ja) * | 2014-05-26 | 2015-12-03 | 株式会社日立製作所 | 光情報再生装置及び光情報再生方法 |
Also Published As
Publication number | Publication date |
---|---|
US20100195179A1 (en) | 2010-08-05 |
JPWO2009044470A1 (ja) | 2011-02-03 |
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