GB507165A - Improvements in or relating to cinematographic apparatus - Google Patents
Improvements in or relating to cinematographic apparatusInfo
- Publication number
- GB507165A GB507165A GB3419937A GB3419937A GB507165A GB 507165 A GB507165 A GB 507165A GB 3419937 A GB3419937 A GB 3419937A GB 3419937 A GB3419937 A GB 3419937A GB 507165 A GB507165 A GB 507165A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- image
- mirror
- projected
- lens
- 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
- G03B41/00—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor
- G03B41/02—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film
- G03B41/04—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film with optical compensator
Abstract
507,165. Kinematograph apparatus. BAIRD TELEVISION, Ltd., and BAIRD, J. L. Dec. 10, 1937, No. 34199. [Class 97 (i)] In apparatus in which a continuously or intermittently moving film is continuously projected or exposed by means of two optical systems alternately brought into use, a mirror which moves into the optical path between one of these systems and a third system continuously in use, has a strip adjoining its leading edge rendered non-reflecting, so that it does not begin to reflect light to one system until it also cuts off light from the other system. As shown, the image 1 on an intermittentlyfed film in a two-image gate is projected, while the film is stationary, by a fixed lens 4 and a, fixed lens 3. While the film is being fed upwardly, the image 2 on the film is projected by a moving, compensating lens 5 and the lens 3, light being reflected between the lenses by a fixed reflector 6 and a mirror 7 which moves into ,position, prior to the film movement, from a position 8. The part 9, 10 of the mirror is blackened, to prevent reflection of the beam from the image 2 until the edge 10 of the mirror begins to cut off the beam from the image 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3419937A GB507165A (en) | 1937-12-10 | 1937-12-10 | Improvements in or relating to cinematographic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3419937A GB507165A (en) | 1937-12-10 | 1937-12-10 | Improvements in or relating to cinematographic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB507165A true GB507165A (en) | 1939-06-12 |
Family
ID=10362614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3419937A Expired GB507165A (en) | 1937-12-10 | 1937-12-10 | Improvements in or relating to cinematographic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB507165A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2823256A (en) * | 1952-10-15 | 1958-02-11 | Rca Corp | Film scanning for television |
-
1937
- 1937-12-10 GB GB3419937A patent/GB507165A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2823256A (en) * | 1952-10-15 | 1958-02-11 | Rca Corp | Film scanning for television |
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