GB285035A - - Google Patents
Info
- Publication number
- GB285035A GB285035A GB285035DA GB285035A GB 285035 A GB285035 A GB 285035A GB 285035D A GB285035D A GB 285035DA GB 285035 A GB285035 A GB 285035A
- Authority
- GB
- United Kingdom
- Prior art keywords
- image
- reactions
- couleurs
- dorian
- reversal
- 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.)
- Active
Links
Landscapes
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Abstract
285,035. Soc. Francaise de Cinematographie et de Photographie Films en Couleurs-Dorian, (formerly Soc. du Film en Couleurs Keller-Dorian). Feb. 9, 1927; [Convention date]. Colour photography; developing and after treament.-In the reproduction, by optical projection followed by reversal of the developed copy, of original colour-record images made by exposure and development followed by reversal on lenticular films, a copy is produced having contrasts equal to those, of the original image by transforming this image, before copying, into an image having reduced contrasts by subjecting it to known reactions which, unlike the ordinary reducing reactions, terminate automatically. Such reactions may comprise toning the silver image either chemically or by mordant dyeing, or conversion of the silver into chloride, bromide,- iodide, or ferrocyanide.
Publications (1)
Publication Number | Publication Date |
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GB285035A true GB285035A (en) |
Family
ID=1741123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB285035D Active GB285035A (en) |
Country Status (1)
Country | Link |
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GB (1) | GB285035A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3220118A (en) * | 1961-12-27 | 1965-11-30 | Gen Am Transport | Systems for treating agglomerated products |
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0
- GB GB285035D patent/GB285035A/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3220118A (en) * | 1961-12-27 | 1965-11-30 | Gen Am Transport | Systems for treating agglomerated products |
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