GB191424276A - Improvements in or relating to Means for Taking and Projecting Images in Natural Colours. - Google Patents
Improvements in or relating to Means for Taking and Projecting Images in Natural Colours.Info
- Publication number
- GB191424276A GB191424276A GB191424276DA GB191424276A GB 191424276 A GB191424276 A GB 191424276A GB 191424276D A GB191424276D A GB 191424276DA GB 191424276 A GB191424276 A GB 191424276A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lens
- film
- dispersing
- taking
- situated
- 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
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/14—Additive processes using lenticular screens; Materials therefor; Preparing or processing such materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
24,276. Tissier, L. Dec. 24, 1913, [Convention date]. Colour photography.-In a process for taking and projecting photographs in natural colours, a film sensitized on one side and having a lenticular surface on the opposite side is used in conjunction with a prismatically dispersing-device in order tu obtain an infinite number of micro-spectrographs side by side, which, by screening the rays during the projection through the same device, reconstitute the original colours. In one device, Fig. 1, an opaque diaphragm E is used in the lens, and a prismatic dispersing-device C is used, consisting of two elements C', C' of equal and opposite focal length but of different dispersing power, and producing a maximum colour dispersion but practically no deviation. In another modification, Fig. 2, a diffraction grating C is situated in the image plane of the lens A. A field lens d and secondary lens e are situated in the mean diffraction axis of the screen C and project an image on to the lenticulated film B. In a third modification, Fig. 3, the film B is exposed through a tank F containing a dispersing- fluid, such as ethyl cinnamate, and a series of very fine prismatic steps G of glass or of mounted plastic substance. Copies of the film are obtained by the arrangement shown in Fig. 6, in which the lenticulated films B, B<Î> and the dispersion devices C are arranged on either side of the copying-lens, as shown.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR191424276X | 1913-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191424276A true GB191424276A (en) | 1915-12-20 |
Family
ID=32669535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB191424276D Expired GB191424276A (en) | 1913-12-24 | 1914-12-18 | Improvements in or relating to Means for Taking and Projecting Images in Natural Colours. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB191424276A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2418345A (en) * | 1944-03-03 | 1947-04-01 | Color Res Corp | Photography in additive color by the controlled utilization of chromatic aberrations in lenses |
-
1914
- 1914-12-18 GB GB191424276D patent/GB191424276A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2418345A (en) * | 1944-03-03 | 1947-04-01 | Color Res Corp | Photography in additive color by the controlled utilization of chromatic aberrations in lenses |
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