FR2388363A1 - Systeme d'enregistrement de donnees par hologramme - Google Patents
Systeme d'enregistrement de donnees par hologrammeInfo
- Publication number
- FR2388363A1 FR2388363A1 FR7811676A FR7811676A FR2388363A1 FR 2388363 A1 FR2388363 A1 FR 2388363A1 FR 7811676 A FR7811676 A FR 7811676A FR 7811676 A FR7811676 A FR 7811676A FR 2388363 A1 FR2388363 A1 FR 2388363A1
- Authority
- FR
- France
- Prior art keywords
- hologram
- reproduction
- beams
- medium
- support
- 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.)
- Pending
Links
- 230000001427 coherent effect Effects 0.000 abstract 1
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
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/30—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture with provision for auxiliary signals
- G11B23/36—Signals on record carriers or on containers and recorded by the same method as the main recording
-
- 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
- Holo Graphy (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
Système d'enregistrement de données par hologramme, au moyen d'un certain nombre de faisceaux 21, 22, de lumière cohérente. Un dispositif d'égalisation des fronts d'ondes, constitué de lentilles cylindriques 100, 200, 300, 400, facilite la discrimination. L'enregistrement s'effectue sur un support 500, tel qu'un film photographique, qui défile dans un plan perpendiculaire au plan d'incidence. Un miroir de balayage oscillant 40 permet de projeter les faisceaux 21, 22, sur le support 500, pour réaliser l'hologramme, constitué de préférence de plusieurs pistes parallèles. Un faisceau de reproduction 14, guidé par un miroir oscillant 44, peut explorer les pistes enregistrées sur le support 500, pour reconstituer les données, grâce à un dispositif photo-sensible 46 permettant une restitution sélective à la demande. Application aux systèmes d'enregistrement par hologramme, notamment à grande vitesse de fonctionnement, pour en améliorer la discrimination, en vue d'éviter les erreurs de reproduction, même en cas de mouvements latéraux fortuits du support 500.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB16973/77A GB1598547A (en) | 1977-04-23 | 1977-04-23 | Holographic data storage |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2388363A1 true FR2388363A1 (fr) | 1978-11-17 |
Family
ID=10086948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7811676A Pending FR2388363A1 (fr) | 1977-04-23 | 1978-04-20 | Systeme d'enregistrement de donnees par hologramme |
Country Status (6)
Country | Link |
---|---|
US (1) | US4213193A (fr) |
JP (1) | JPS5417047A (fr) |
DE (1) | DE2815928A1 (fr) |
FR (1) | FR2388363A1 (fr) |
GB (1) | GB1598547A (fr) |
NL (1) | NL7804296A (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4703994A (en) * | 1986-03-24 | 1987-11-03 | Grumman Aerospace Corporation | System and method for automatically fabricating multi-hologram optical elements |
DE3734438A1 (de) * | 1987-10-12 | 1989-04-27 | Ver Glaswerke Gmbh | Verfahren zur herstellung eines reflexionshologramms |
US5543251A (en) * | 1990-06-29 | 1996-08-06 | E. I. Du Pont De Nemours And Company | Method of recording plural holographic images into a holographic recording material by temporal interleaving |
US5519651A (en) * | 1993-10-07 | 1996-05-21 | Tamarack Storage Devices | High capacity holographic storage system |
US5621549A (en) * | 1993-10-07 | 1997-04-15 | Tamarack Storage Devices, Inc. | Method and apparatus for positioning a light beam on a holographic media |
US5566387A (en) * | 1993-12-23 | 1996-10-15 | Tamarack Storage Devices | Diamond shaped holographic storage regions oriented along a common radial column line for higher storage density |
US5694488A (en) * | 1993-12-23 | 1997-12-02 | Tamarack Storage Devices | Method and apparatus for processing of reconstructed holographic images of digital data patterns |
US5481523A (en) * | 1993-12-23 | 1996-01-02 | Tamarack Storage Devices | Gantry for positioning a read/write head of a holographic information storage system |
US5883880A (en) * | 1994-06-15 | 1999-03-16 | Tamarack Storage Devices | Disk positioning device for defining precise radial location |
US7130092B1 (en) * | 1998-02-27 | 2006-10-31 | Optware Corporation | Apparatus and method for recording and reproducing optical information |
US6999397B2 (en) * | 2001-03-23 | 2006-02-14 | Daewoo Electronics Corp. | Holographic digital data storage system compatible with holographic and reflective medium |
US7200097B2 (en) * | 2002-04-26 | 2007-04-03 | Research Investment Network, Inc. | Parallel recording and reading of diffractive memory using multiple object beams |
US9338330B2 (en) | 2011-09-23 | 2016-05-10 | Reflex Technologies, Llc | Method and apparatus for continuous motion film scanning |
CN109804294B (zh) * | 2016-10-25 | 2022-08-02 | 林瑟科技公司 | 用于数字全息成像和干涉测量的光纤分路器装置和包括所述光纤分路器装置的光学系统 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2130946A5 (fr) * | 1971-03-26 | 1972-11-10 | Comp Generale Electricite | |
FR2169074A1 (fr) * | 1972-01-24 | 1973-09-07 | Siemens Ag | |
FR2254811A1 (fr) * | 1973-12-14 | 1975-07-11 | Honeywell Inc | |
US4012108A (en) * | 1974-01-17 | 1977-03-15 | Nippon Telegraph And Telephone Public Corporation | Hologram memory apparatus |
US4045115A (en) * | 1975-11-17 | 1977-08-30 | Honeywell Inc. | Optics for multi-track holographic tape recorder |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2229381A1 (de) * | 1972-06-16 | 1974-01-03 | Agfa Gevaert Ag | Verfahren und vorrichtung zur aufzeichnung eines in einem hologramm gespeicherten objektwellenfeldes |
US3812496A (en) * | 1972-08-22 | 1974-05-21 | Trw Inc | Optical signal recording system |
US4084153A (en) * | 1976-03-15 | 1978-04-11 | Harris Corporation | Apparatus for reconstructing a binary bit pattern |
-
1977
- 1977-04-23 GB GB16973/77A patent/GB1598547A/en not_active Expired
-
1978
- 1978-04-13 DE DE19782815928 patent/DE2815928A1/de not_active Withdrawn
- 1978-04-20 FR FR7811676A patent/FR2388363A1/fr active Pending
- 1978-04-21 US US05/898,888 patent/US4213193A/en not_active Expired - Lifetime
- 1978-04-21 NL NL7804296A patent/NL7804296A/xx not_active Application Discontinuation
- 1978-04-24 JP JP4865178A patent/JPS5417047A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2130946A5 (fr) * | 1971-03-26 | 1972-11-10 | Comp Generale Electricite | |
FR2169074A1 (fr) * | 1972-01-24 | 1973-09-07 | Siemens Ag | |
FR2254811A1 (fr) * | 1973-12-14 | 1975-07-11 | Honeywell Inc | |
US4012108A (en) * | 1974-01-17 | 1977-03-15 | Nippon Telegraph And Telephone Public Corporation | Hologram memory apparatus |
US4045115A (en) * | 1975-11-17 | 1977-08-30 | Honeywell Inc. | Optics for multi-track holographic tape recorder |
Non-Patent Citations (2)
Title |
---|
EXBK/66 * |
EXBK/69 * |
Also Published As
Publication number | Publication date |
---|---|
US4213193A (en) | 1980-07-15 |
DE2815928A1 (de) | 1978-11-02 |
GB1598547A (en) | 1981-09-23 |
NL7804296A (nl) | 1978-10-25 |
JPS5417047A (en) | 1979-02-08 |
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