GB371867A - Improvements in colour photography - Google Patents
Improvements in colour photographyInfo
- Publication number
- GB371867A GB371867A GB281731A GB281731A GB371867A GB 371867 A GB371867 A GB 371867A GB 281731 A GB281731 A GB 281731A GB 281731 A GB281731 A GB 281731A GB 371867 A GB371867 A GB 371867A
- Authority
- GB
- United Kingdom
- Prior art keywords
- colour
- elements
- lens
- filter
- screen
- 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
- G03C7/04—Additive processes using colour screens; Materials therefor; Preparing or processing such materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Filters (AREA)
Abstract
371,867. Colour photography. CHAPMAN, W., 71, Grovelands Road, Palmers Green, London. Jan. 28, 1931, No. 2817. [Class 98 (ii).] In the projection printing of colour-screen positives or copies from colour-screen negatives or originals, means is provided whereby certain zones of the lens are effective only as regards certain colour elements, the whole area of the lens being effective for other elements. Thus, where the screen includes substantially blue elements, an annular yellow or other minus blue filter is located close to the lens. In order to take account of variations in the emulsion or the filter elements, a series of annular filters may be provided appropriately marked in accordance with film spool filter indications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB281731A GB371867A (en) | 1931-01-28 | 1931-01-28 | Improvements in colour photography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB281731A GB371867A (en) | 1931-01-28 | 1931-01-28 | Improvements in colour photography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB371867A true GB371867A (en) | 1932-04-28 |
Family
ID=9746489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB281731A Expired GB371867A (en) | 1931-01-28 | 1931-01-28 | Improvements in colour photography |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB371867A (en) |
-
1931
- 1931-01-28 GB GB281731A patent/GB371867A/en not_active Expired
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