CA2022016A1 - Systeme d'exposition holographique pour reduire le bruit - Google Patents
Systeme d'exposition holographique pour reduire le bruitInfo
- Publication number
- CA2022016A1 CA2022016A1 CA2022016A CA2022016A CA2022016A1 CA 2022016 A1 CA2022016 A1 CA 2022016A1 CA 2022016 A CA2022016 A CA 2022016A CA 2022016 A CA2022016 A CA 2022016A CA 2022016 A1 CA2022016 A1 CA 2022016A1
- Authority
- CA
- Canada
- Prior art keywords
- hologram
- noise
- reduce spurious
- exposure system
- holographic exposure
- 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
- 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
-
- 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
- G03H1/20—Copying holograms by holographic, i.e. optical means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S359/00—Optical: systems and elements
- Y10S359/90—Methods
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Holo Graphy (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/401,327 US4984856A (en) | 1989-08-31 | 1989-08-31 | Holographic exposure system to reduce spurious hologram noise |
US401,327 | 1989-08-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2022016A1 true CA2022016A1 (fr) | 1991-03-01 |
CA2022016C CA2022016C (fr) | 1995-02-07 |
Family
ID=23587290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002022016A Expired - Fee Related CA2022016C (fr) | 1989-08-31 | 1990-07-26 | Systeme d'exposition holographique pour reduire le bruit |
Country Status (7)
Country | Link |
---|---|
US (1) | US4984856A (fr) |
EP (1) | EP0415245B1 (fr) |
JP (1) | JPH0776861B2 (fr) |
CA (1) | CA2022016C (fr) |
DE (1) | DE69026775T2 (fr) |
ES (1) | ES2086339T3 (fr) |
IL (1) | IL95222A (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8904320D0 (en) * | 1989-02-24 | 1989-07-05 | Pilkington Plc | Holographic exposure method and apparatus |
US5453338A (en) | 1992-03-31 | 1995-09-26 | Dai Nippon Printing Co., Ltd. | Hologram and method of and apparatus for producing the same |
JPH04329585A (ja) * | 1991-05-01 | 1992-11-18 | Nippondenso Co Ltd | 光学素子コピー用反射型ホログラム乾板製造装置 |
US5257118A (en) * | 1992-01-29 | 1993-10-26 | Eastman Kodak Company | Method for holographically combining laser beams |
US5499118A (en) * | 1994-08-31 | 1996-03-12 | Hughes Aircraft Company | System for copying multiple holograms |
DE19700162B4 (de) | 1997-01-07 | 2006-09-07 | Eads Deutschland Gmbh | Verfahren zur Herstellung eines holografischen Bildschirms für die Laseraufprojektion |
DE19703592A1 (de) | 1997-01-31 | 1998-08-06 | Daimler Benz Ag | Bildschirm für Laserrückprojektion |
DE19704740B4 (de) * | 1997-02-13 | 2006-07-13 | Eads Deutschland Gmbh | Holografischer Bildschirm und Herstellungsverfahren |
US5963346A (en) * | 1997-12-12 | 1999-10-05 | Northrop Grumman Corporation | Scatter noise reduction in holographic storage systems by two-step write |
US6016210A (en) * | 1997-12-15 | 2000-01-18 | Northrop Grumman Corporation | Scatter noise reduction in holographic storage systems by speckle averaging |
US6118560A (en) * | 1998-02-06 | 2000-09-12 | Northrop Grumman Corporation | Scatter noise reduction in holographic storage systems by signal-noise orthogonalization |
FR2808600B1 (fr) * | 2000-05-02 | 2002-08-09 | Thomson Csf | Procede de prise de vues holographiques a grande resolution |
US20230244184A1 (en) * | 2019-11-01 | 2023-08-03 | Acr Ii Glass America Inc. | Replication tooling |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2323931C3 (de) * | 1972-05-20 | 1978-03-02 | Centralne Laboratorium Optyki, Warschau | Holographisches Mikroskop |
AU535350B2 (en) * | 1979-05-07 | 1984-03-15 | Sony Corporation | Inline hologram lens |
US4530564A (en) * | 1980-08-18 | 1985-07-23 | Hughes Aircraft Company | Method and apparatus for production of holographic optical elements |
US4458977A (en) * | 1981-06-01 | 1984-07-10 | Hughes Aircraft Company | Systems for forming improved reflection holograms with a single beam |
US4456328A (en) * | 1981-06-01 | 1984-06-26 | Hughes Aircraft Company | Systems for forming improved diffusion holograms |
US4458978A (en) * | 1981-06-01 | 1984-07-10 | Hughes Aircraft Company | Double beam systems for forming improved holograms |
US4478490A (en) * | 1981-11-02 | 1984-10-23 | Hughes Aircraft Company | Noise reduction in coherent systems |
US4416540A (en) * | 1981-11-23 | 1983-11-22 | Peter Nicholson | Apparatus and method for holographic contact copying |
DE3367470D1 (en) * | 1982-02-23 | 1986-12-11 | Fujitsu Ltd | Method of constructing holograms |
GB2192292B (en) * | 1986-07-14 | 1990-02-14 | Le I Yadernoi Fiz Im B P Konst | Apparatus for copying holographic diffraction gratings |
JPS63131166A (ja) * | 1986-11-21 | 1988-06-03 | Toppan Printing Co Ltd | ホログラム転写箔 |
GB8803283D0 (en) * | 1988-02-12 | 1988-03-09 | Ciba Geigy Ag | Copying holograms |
US4953923A (en) * | 1988-08-01 | 1990-09-04 | Hughes Aircraft Company | System for reducing noise holograms |
-
1989
- 1989-08-31 US US07/401,327 patent/US4984856A/en not_active Expired - Lifetime
-
1990
- 1990-07-26 CA CA002022016A patent/CA2022016C/fr not_active Expired - Fee Related
- 1990-07-29 IL IL95222A patent/IL95222A/xx not_active IP Right Cessation
- 1990-08-22 DE DE69026775T patent/DE69026775T2/de not_active Expired - Fee Related
- 1990-08-22 ES ES90116030T patent/ES2086339T3/es not_active Expired - Lifetime
- 1990-08-22 EP EP90116030A patent/EP0415245B1/fr not_active Expired - Lifetime
- 1990-08-31 JP JP2230467A patent/JPH0776861B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0415245B1 (fr) | 1996-05-01 |
ES2086339T3 (es) | 1996-07-01 |
DE69026775T2 (de) | 1996-09-05 |
IL95222A0 (en) | 1991-06-10 |
IL95222A (en) | 1993-06-10 |
EP0415245A2 (fr) | 1991-03-06 |
JPH0392886A (ja) | 1991-04-18 |
JPH0776861B2 (ja) | 1995-08-16 |
DE69026775D1 (de) | 1996-06-05 |
CA2022016C (fr) | 1995-02-07 |
US4984856A (en) | 1991-01-15 |
EP0415245A3 (en) | 1992-04-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |