BE474235A - - Google Patents
Info
- Publication number
- BE474235A BE474235A BE474235DA BE474235A BE 474235 A BE474235 A BE 474235A BE 474235D A BE474235D A BE 474235DA BE 474235 A BE474235 A BE 474235A
- 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
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/08—Sensitivity-increasing substances
- G03C1/09—Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US254261XA | 1939-11-17 | 1939-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE474235A true BE474235A (no) |
Family
ID=21825979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE474235D BE474235A (no) | 1939-11-17 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE474235A (no) |
| CH (1) | CH254261A (no) |
| FR (1) | FR956651A (no) |
| GB (1) | GB636140A (no) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1513140A (en) * | 1974-09-30 | 1978-06-07 | Agfa Gevaert | Direct-positive silver halide emulsions |
| US5641621A (en) * | 1996-01-11 | 1997-06-24 | Eastman Kodak Company | Process for preparation of silver halide emulsion employing a double heat-cycle during finishing |
-
0
- BE BE474235D patent/BE474235A/xx unknown
- FR FR956651D patent/FR956651A/fr not_active Expired
-
1946
- 1946-05-15 CH CH254261D patent/CH254261A/fr unknown
-
1947
- 1947-08-08 GB GB22119/47A patent/GB636140A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR956651A (no) | 1950-02-02 |
| CH254261A (fr) | 1948-04-30 |
| GB636140A (en) | 1950-04-26 |