BE476292A - - Google Patents
Info
- Publication number
- BE476292A BE476292A BE476292DA BE476292A BE 476292 A BE476292 A BE 476292A BE 476292D A BE476292D A BE 476292DA BE 476292 A BE476292 A BE 476292A
- Authority
- BE
- Belgium
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
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/485—Direct positive emulsions
- G03C1/48515—Direct positive emulsions prefogged
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB10022/46A GB626053A (en) | 1946-04-01 | 1946-04-01 | Improvements in sensitive photographic materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE476292A true BE476292A (https=) |
Family
ID=9959998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE476292D BE476292A (https=) | 1946-04-01 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2500140A (https=) |
| BE (1) | BE476292A (https=) |
| FR (1) | FR953646A (https=) |
| GB (1) | GB626053A (https=) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2717833A (en) * | 1952-05-12 | 1955-09-13 | Sperry Rand Corp | Direct positive emulsions |
| US3367778A (en) * | 1965-04-15 | 1968-02-06 | Eastman Kodak Co | Silver salt direct positive emulsion |
| US3816135A (en) * | 1972-03-30 | 1974-06-11 | Du Pont | Direct positive silver halide emulsions through synergistic effects of fogging agents and organic reducing agents and/or their oxidized forms |
| DE2224837C3 (de) * | 1972-05-20 | 1986-05-07 | Agfa-Gevaert Ag, 5090 Leverkusen | Direktpositives photographisches Aufzeichnungsmaterial |
| DE2263246A1 (de) * | 1972-12-23 | 1974-07-04 | Agfa Gevaert Ag | Photographisches material zur herstellung direktpositiver photographischer bilder |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB462730A (https=) * | ||||
| US2005837A (en) * | 1931-07-07 | 1935-06-25 | Agfa Ansco Corp | Manufacture of photographic emulsions |
-
0
- BE BE476292D patent/BE476292A/xx unknown
-
1946
- 1946-04-01 GB GB10022/46A patent/GB626053A/en not_active Expired
-
1947
- 1947-03-06 US US732934A patent/US2500140A/en not_active Expired - Lifetime
- 1947-09-30 FR FR953646D patent/FR953646A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2500140A (en) | 1950-03-07 |
| GB626053A (en) | 1949-07-08 |
| FR953646A (fr) | 1949-12-09 |