http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-474914-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0175572f7554722506b14c9ace98c984 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F3-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03F3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-00 |
| filingDate | 1936-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1937-11-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-474914-A |
| titleOfInvention | Improvements in or relating to colour photography |
| abstract | 474,914. Colour photography. OMNICHROME CORPORATION. May 9, 1936, No. 13197. Convention date, May 9, 1935. [Class 98 (ii)] An emulsion on a glass or film support is sensitized to record two colour component images by the formation of two strata in the emulsion, and, after the emulsion is exposed, developed, and treated in a stop bath, the colour component images are printed by reflection on to separate plates. The emulsion may then be fixed and a black and white key plate produced by printing through both strata. An additional carrier with a single emulsion sensitized to record another colour component image may be placed with the emulsion adjacent the two-strata emulsion of the first film, and the bipack exposed through the support of the first film. A bluesensitive emulsion may, after treatment with a wetting agent such as sodium tetraborate or sodium acid phthalate, be treated with a sensitizing solution containing pinacyanol and rapid filter yellow. The latter substantially penetrates through the emulsion, but the former only penetrates to a limited depth. The stop bath used after development may comprise ten per cent acetic acid containing one per cent chrome alum. The production of two-strata emulsions recording blue and green, and recording red and green respectively is described. |
| priorityDate | 1935-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.