WO1990005944A3 - Improvements in or relating to holograms - Google Patents
Improvements in or relating to hologramsInfo
- Publication number
- WO1990005944A3 WO1990005944A3 PCT/GB1989/001365 GB8901365W WO9005944A3 WO 1990005944 A3 WO1990005944 A3 WO 1990005944A3 GB 8901365 W GB8901365 W GB 8901365W WO 9005944 A3 WO9005944 A3 WO 9005944A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- subject
- plate
- retro
- laser light
- splitting plate
- Prior art date
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
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/0402—Recording geometries or arrangements
- G03H1/0406—Image plane or focused image holograms, i.e. an image of the object or holobject is formed on, in or across the recording plane
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Holo Graphy (AREA)
- Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)
Abstract
In a method of preparing a three-dimensional photograph of a subject, for example a three-dimensional portrait, the subject (10) is illuminated, through a diffusing screen by a source of laser light. A retro-reflective screen (14), comprising an array of cube-corner reflectors, is placed in front of the screen and a beam-splitting plate (12) is arranged, between the retro-reflective screen and the subject, the beam-splitting plate being so inclined relative to the subject as to reflect some of the light from the retro-reflective screen onto a photographic film or plate (18) disposed to one side of the subject, so that the laser light reflected from the subject, passes through the beam-splitting plate to the retro-reflective screen, is reflected back on itself to the beam splitting plate and is partially reflected thereby to form a real image (16) of the subject, in such laser light, on the opposite side of the beam-splitting plate from the subject. The photographic film or plate is located so as to receive the light rays passing through and forming said real image and is further illuminated by said source of laser light whereby there is formed on said film or plate, after conventional development, a holographic three-dimensional image of the subject, viewable in white light.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB888826766A GB8826766D0 (en) | 1988-11-16 | 1988-11-16 | Improvements in/relating to holograms |
| GB8826766.1 | 1988-11-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1990005944A2 WO1990005944A2 (en) | 1990-05-31 |
| WO1990005944A3 true WO1990005944A3 (en) | 1990-07-12 |
Family
ID=10646928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/GB1989/001365 WO1990005944A2 (en) | 1988-11-16 | 1989-11-16 | Improvements in or relating to holograms |
Country Status (4)
| Country | Link |
|---|---|
| AU (1) | AU4621189A (en) |
| CA (1) | CA2003164A1 (en) |
| GB (1) | GB8826766D0 (en) |
| WO (1) | WO1990005944A2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9012667D0 (en) * | 1990-06-07 | 1990-08-01 | Emi Plc Thorn | Apparatus for displaying an image |
| US5886818A (en) * | 1992-12-03 | 1999-03-23 | Dimensional Media Associates | Multi-image compositing |
| GB2284680A (en) * | 1993-12-13 | 1995-06-14 | Central Research Lab Ltd | Apparatus for displaying a suspended image |
| US5552934A (en) * | 1994-03-18 | 1996-09-03 | Spm Corporation | Background reflection-reducing plano-beam splitter for use in real image projecting system |
| CN108983423A (en) * | 2018-07-26 | 2018-12-11 | 京东方科技集团股份有限公司 | A kind of Binocular displays system and vehicle-mounted head-up-display system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4735474A (en) * | 1987-03-04 | 1988-04-05 | Trilone Holographie Corp. | Photograph booth with automatic holographic camera |
-
1988
- 1988-11-16 GB GB888826766A patent/GB8826766D0/en active Pending
-
1989
- 1989-11-16 CA CA 2003164 patent/CA2003164A1/en not_active Abandoned
- 1989-11-16 WO PCT/GB1989/001365 patent/WO1990005944A2/en unknown
- 1989-11-16 AU AU46211/89A patent/AU4621189A/en not_active Abandoned
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4735474A (en) * | 1987-03-04 | 1988-04-05 | Trilone Holographie Corp. | Photograph booth with automatic holographic camera |
Non-Patent Citations (3)
| Title |
|---|
| Applied Optics, Vol. 7, No. 3, April 1968, C.B. BURCKHARDT et al.: "Formation and Inversion of Pseudoscopic Images", pages 627-631 * |
| IBM Technical Disclosure Bulletin, Vol. 10, No. 10, March 1968, A.W. LOHMANN: "One-Step Holocoder", pages 1452-1454 * |
| P. Hariharan: "Optical Holography - Principles, Techniques and Applications", 1984, Cambridge University Press, (Cambridge, GB), pages 21,28-30,34,35 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2003164A1 (en) | 1990-05-16 |
| GB8826766D0 (en) | 1988-12-21 |
| AU4621189A (en) | 1990-06-12 |
| WO1990005944A2 (en) | 1990-05-31 |
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