FR2284889A1 - Dephaseur pour enregistrement par hologramme - Google Patents
Dephaseur pour enregistrement par hologrammeInfo
- Publication number
- FR2284889A1 FR2284889A1 FR7528149A FR7528149A FR2284889A1 FR 2284889 A1 FR2284889 A1 FR 2284889A1 FR 7528149 A FR7528149 A FR 7528149A FR 7528149 A FR7528149 A FR 7528149A FR 2284889 A1 FR2284889 A1 FR 2284889A1
- Authority
- FR
- France
- Prior art keywords
- dephaser
- hologram recording
- hologram
- recording
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
- G11C13/042—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using information stored in the form of interference pattern
-
- 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
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/16—Processes or apparatus for producing holograms using Fourier transform
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2223/00—Optical components
- G03H2223/13—Phase mask
Landscapes
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Holo Graphy (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10550074A JPS5132647A (en) | 1974-09-14 | 1974-09-14 | Horoguramukirokuyo no nichiisoban |
JP11800974A JPS5144935A (ja) | 1974-10-16 | 1974-10-16 | Horoguramukirokuyono isoban |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2284889A1 true FR2284889A1 (fr) | 1976-04-09 |
FR2284889B1 FR2284889B1 (fr) | 1979-03-23 |
Family
ID=26445774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7528149A Granted FR2284889A1 (fr) | 1974-09-14 | 1975-09-12 | Dephaseur pour enregistrement par hologramme |
Country Status (2)
Country | Link |
---|---|
US (1) | US4143937A (fr) |
FR (1) | FR2284889A1 (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4410237A (en) * | 1980-09-26 | 1983-10-18 | Massachusetts Institute Of Technology | Method and apparatus for shaping electromagnetic beams |
US5510912A (en) * | 1993-08-09 | 1996-04-23 | International Business Machines Corporation | Method and apparatus for modulation of multi-dimensional data in holographic storage |
US5627664A (en) * | 1994-06-29 | 1997-05-06 | Tamarack Storage Devices, Inc. | Holographic storage with combined orthogonal phase codes and random phase codes |
US5940514A (en) * | 1996-04-30 | 1999-08-17 | The Board Of Trustees Of The Leland Stanford Junior University | Encrypted holographic data storage based on orthogonal phase code multiplexing |
JP3521113B2 (ja) * | 1998-03-27 | 2004-04-19 | パイオニア株式会社 | 体積ホログラフィックメモリ光情報記録再生装置 |
US6281993B1 (en) | 1998-03-30 | 2001-08-28 | International Business Machines Corporation | Phase shifting element for optical information processing storing systems |
JP3413138B2 (ja) * | 1998-11-06 | 2003-06-03 | キヤノン株式会社 | 位相型計算機ホログラムの製造方法 |
DE19938723A1 (de) * | 1999-08-16 | 2001-02-22 | Busch Dieter & Co Prueftech | Verfahren zur Signalanalyse |
US6975458B1 (en) | 2001-07-13 | 2005-12-13 | Kurt Kanzler | Method and apparatus for transformation of a gaussian laser beam to a far field diffraction pattern |
US7813017B2 (en) * | 2005-10-21 | 2010-10-12 | Inphase Technologies, Inc. | Method and system for increasing holographic data storage capacity using irradiance-tailoring element |
WO2007103569A2 (fr) | 2006-03-09 | 2007-09-13 | Inphase Technologies, Inc. | Laser à cavité extérieure |
EP1873764A1 (fr) * | 2006-06-30 | 2008-01-02 | Bayer Innovation Gmbh | Procédé et système de décodage optique parallèle de l'image de la phase numérique pour intensifier l'image |
FR2950986A1 (fr) * | 2009-10-05 | 2011-04-08 | Commissariat Energie Atomique | Superposition d'une image visible et d'un hologramme synthetique |
AT525445B1 (de) | 2021-10-08 | 2023-04-15 | Stefan Hohla | Vorrichtung zum Leiten von elektrischer Energie |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3604778A (en) * | 1969-10-22 | 1971-09-14 | Bell Telephone Labor Inc | Fourier transform recording with random phase shifting |
US3883232A (en) * | 1973-12-03 | 1975-05-13 | Hitachi Ltd | Random phase plate and optical system incorporating said plate |
GB1523165A (en) * | 1974-08-03 | 1978-08-31 | Matsushita Electric Ind Co Ltd | Fourier-transform holography by pseudo-random phase shifting |
-
1975
- 1975-09-12 FR FR7528149A patent/FR2284889A1/fr active Granted
-
1977
- 1977-11-08 US US05/849,580 patent/US4143937A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE2540800A1 (de) | 1976-04-01 |
FR2284889B1 (fr) | 1979-03-23 |
US4143937A (en) | 1979-03-13 |
DE2540800B2 (de) | 1977-02-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |