GB685608A - Colour photographic process - Google Patents
Colour photographic processInfo
- Publication number
- GB685608A GB685608A GB491449A GB491449A GB685608A GB 685608 A GB685608 A GB 685608A GB 491449 A GB491449 A GB 491449A GB 491449 A GB491449 A GB 491449A GB 685608 A GB685608 A GB 685608A
- Authority
- GB
- United Kingdom
- Prior art keywords
- colour
- record
- duplicate
- false
- positive
- 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
- G03C7/18—Processes for the correction of the colour image in subtractive colour photography
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Color Image Communication Systems (AREA)
Abstract
685,608. Colour photography. GANGUIN, K. O., and IMPERIAL CHEMICAL INDUS. TRIES, Ltd. Feb. 23, 1950 [Feb. 23, 1949],- No. 4914/49. Drawings to Specification. Class 98 (ii). A duplicate colour photographic record from which copies may be taken, designed to avoid repeated printing operations from a valuable original negative while minimizing progressive deteriation in colour fidelity, is made by exposing a true-colour colour-former multilayer film to light transmitted by an original false-colour colour record and processing by reversal. Preferably, the false-colour record used is made from a multilayer film having sensitivity-colour former combinations of blue-yellow, green-cyan and red-magenta; but any combination, as set out in a table showing all alternatives provided that the blue-sensitive layer is uppermost, may be used. The false-colour record used may be that of Specifications 685,607, 685,610, and 685,612, carrying respectively black and white, azo- and styryl-dyestuff colour correcting masks. An example repeats that of 685,607 but concludes by describing production of the duplicate colour record instead of running on directly to production of a positive from the camera film; and states that a positive made from such duplicate has much improved colour fidelity and saturation as compared with a positive resulting from true colour duplicate or master record procedure. Specifications 486,848 and 489,162 also are referred to.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB491449A GB685608A (en) | 1949-02-23 | 1949-02-23 | Colour photographic process |
GB491549A GB685609A (en) | 1949-02-23 | 1949-02-23 | Colour photographic process |
FR1018313D FR1018313A (en) | 1949-02-23 | 1950-02-23 | Method and device for color photography |
BE494118D BE494118A (en) | 1949-02-23 | 1950-02-23 | |
FR1018314D FR1018314A (en) | 1949-02-23 | 1950-02-23 | Improvements in color photography |
BE494117D BE494117A (en) | 1949-02-23 | 1950-02-23 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB491449A GB685608A (en) | 1949-02-23 | 1949-02-23 | Colour photographic process |
GB491549A GB685609A (en) | 1949-02-23 | 1949-02-23 | Colour photographic process |
Publications (1)
Publication Number | Publication Date |
---|---|
GB685608A true GB685608A (en) | 1953-01-07 |
Family
ID=26239466
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB491449A Expired GB685608A (en) | 1949-02-23 | 1949-02-23 | Colour photographic process |
GB491549A Expired GB685609A (en) | 1949-02-23 | 1949-02-23 | Colour photographic process |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB491549A Expired GB685609A (en) | 1949-02-23 | 1949-02-23 | Colour photographic process |
Country Status (3)
Country | Link |
---|---|
BE (2) | BE494117A (en) |
FR (2) | FR1018314A (en) |
GB (2) | GB685608A (en) |
-
1949
- 1949-02-23 GB GB491449A patent/GB685608A/en not_active Expired
- 1949-02-23 GB GB491549A patent/GB685609A/en not_active Expired
-
1950
- 1950-02-23 BE BE494117D patent/BE494117A/xx unknown
- 1950-02-23 BE BE494118D patent/BE494118A/xx unknown
- 1950-02-23 FR FR1018314D patent/FR1018314A/en not_active Expired
- 1950-02-23 FR FR1018313D patent/FR1018313A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB685609A (en) | 1953-01-07 |
BE494117A (en) | 1950-08-23 |
FR1018314A (en) | 1953-01-06 |
FR1018313A (en) | 1953-01-06 |
BE494118A (en) | 1950-08-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB776634A (en) | Improvements relating to silver transfer-reversal processes and their products | |
CH312986A (en) | Device for producing color-corrected negatives from color separation positives | |
GB685608A (en) | Colour photographic process | |
GB626897A (en) | Improvements in colour photography | |
GB503832A (en) | Improvements in the production of cinematograph multi-colour pictures | |
GB685613A (en) | Colour photographic process | |
GB471092A (en) | An improved process for the production of lenticular colour and sound films | |
GB859817A (en) | Process for the pictorial transfer of coloured picture patterns to printing surfaces | |
GB354731A (en) | Improvements in or relating to a process for the manufacture of photographic pictures, especially of kinematographic film pictures and to the pictures and the like obtained therefrom | |
GB865913A (en) | Improvements in and relating to the projection of photographic pictures | |
GB592296A (en) | Improvements in and relating to photographic printing processes employing image masks | |
GB150819A (en) | Improvements in or relating to colour photography | |
GB710481A (en) | Improvements in and relating to a colour photographic material and process | |
GB864430A (en) | Improvements in or relating to the manufacture of printed electric circuits | |
GB233989A (en) | Improvements in or relating to multi-colour kinematograph and other films | |
CH332166A (en) | Photographic copying process for producing multicolored images and film produced by the process | |
KR790000695B1 (en) | Method of making a color and development of color photographic sensitive material | |
GB865186A (en) | Improvements in and relating to copying subtractive colour photographic films | |
GB582956A (en) | Improvements in or relating to photomechanical reproduction | |
GB157846A (en) | Improvements in and relating to cinematograph films | |
GB805173A (en) | Improvements in and relating to photographic colour processes | |
GB694848A (en) | Improvements in light sensitive silver halide emulsions for use in half tone photographic processes | |
GB140349A (en) | Producing colored photographs or kinematograph films | |
GB169233A (en) | A new or improved process of producing photographic silhouettes | |
GB726445A (en) | Production of plates for photomechanical printing processes |