GB486199A - Improvements in three-dimensional projection system - Google Patents
Improvements in three-dimensional projection systemInfo
- Publication number
- GB486199A GB486199A GB2357036D GB2357036D GB486199A GB 486199 A GB486199 A GB 486199A GB 2357036 D GB2357036 D GB 2357036D GB 2357036 D GB2357036 D GB 2357036D GB 486199 A GB486199 A GB 486199A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screen
- coloured
- lenses
- cotton
- screens
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/606—Projection screens characterised by the nature of the surface for relief projection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
486,199. Optical-projection apparatus. COMPARATO, S. Aug. 27, 1936, No. 23570. [Class 97(i)] To produce a relief effect, the projector B carries coloured uncorrected projection lenses 5 and the screen comprises a plurality of adjustable and removable coloured screens a ... e, each having a substantially flat major portion and its edges curved to form concave flanges, the screens being arranged to be moved so as to be used singly or in any desired combination, sources of coloured diffused light 4 surrounding the screens. The screen a is of an animal-thread fabric such as silk, and is coloured with a blue or blue-green pigment; the screen b of the same material is coloured red ; the screen c of cotton is black; the screen d also of cotton is violet or mauve, and the screen e, also of cotton, is yellow in colour. With a projector having a whitelight source and blue-coloured lenses, the screen a, b, c may be employed in superposition or the screen d alone. With a reddish light source and amber lenses, the screen e is employed. The lenses are uncorrected for aberration, distortion and astigmatism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2357036D GB486199A (en) | 1936-08-27 | 1936-08-27 | Improvements in three-dimensional projection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2357036D GB486199A (en) | 1936-08-27 | 1936-08-27 | Improvements in three-dimensional projection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB486199A true GB486199A (en) | 1938-05-27 |
Family
ID=10197818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2357036D Expired GB486199A (en) | 1936-08-27 | 1936-08-27 | Improvements in three-dimensional projection system |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB486199A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3460882A (en) * | 1965-10-23 | 1969-08-12 | Ardell J Abrahamson | Wide-angle single picture system for vision in depth |
-
1936
- 1936-08-27 GB GB2357036D patent/GB486199A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3460882A (en) * | 1965-10-23 | 1969-08-12 | Ardell J Abrahamson | Wide-angle single picture system for vision in depth |
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