BE720660A - - Google Patents
Info
- Publication number
- BE720660A BE720660A BE720660DA BE720660A BE 720660 A BE720660 A BE 720660A BE 720660D A BE720660D A BE 720660DA BE 720660 A BE720660 A BE 720660A
- 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
- G03C1/48538—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure
- G03C1/48546—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure characterised by the nucleating/fogging agent
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)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66707767A | 1967-09-12 | 1967-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE720660A true BE720660A (xx) | 1969-03-11 |
Family
ID=24676697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE720660D BE720660A (xx) | 1967-09-12 | 1968-09-11 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3560213A (xx) |
| JP (1) | JPS4842966B1 (xx) |
| BE (1) | BE720660A (xx) |
| DE (1) | DE1797239C3 (xx) |
| FR (1) | FR1579422A (xx) |
| GB (1) | GB1200393A (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| GB1427525A (en) * | 1972-07-13 | 1976-03-10 | Agfa Gevaert | Directpositive silver halide emulsions |
-
1967
- 1967-09-12 US US667077A patent/US3560213A/en not_active Expired - Lifetime
-
1968
- 1968-09-03 DE DE1797239A patent/DE1797239C3/de not_active Expired
- 1968-09-11 BE BE720660D patent/BE720660A/xx unknown
- 1968-09-11 GB GB43272/68A patent/GB1200393A/en not_active Expired
- 1968-09-11 FR FR1579422D patent/FR1579422A/fr not_active Expired
- 1968-09-12 JP JP43065314A patent/JPS4842966B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1797239C3 (de) | 1978-04-13 |
| FR1579422A (xx) | 1969-08-22 |
| US3560213A (en) | 1971-02-02 |
| DE1797239B2 (de) | 1977-08-04 |
| JPS4842966B1 (xx) | 1973-12-15 |
| GB1200393A (en) | 1970-07-29 |
| DE1797239A1 (de) | 1970-12-17 |