BE530882A - - Google Patents

Info

Publication number
BE530882A
BE530882A BE530882DA BE530882A BE 530882 A BE530882 A BE 530882A BE 530882D A BE530882D A BE 530882DA BE 530882 A BE530882 A BE 530882A
Authority
BE
Belgium
Application number
Priority date (The priority date 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 date listed.)
Publication of BE530882A publication Critical patent/BE530882A/xx

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
    • G03C1/48553—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure characterised by the nucleating/fogging agent the fogging agent only present in the developer
    • 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)
BE530882D 1953-08-03 BE530882A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US371946A US2685514A (en) 1953-08-03 1953-08-03 Direct positive photographic development process

Publications (1)

Publication Number Publication Date
BE530882A true BE530882A (en:Method)

Family

ID=23466058

Family Applications (1)

Application Number Title Priority Date Filing Date
BE530882D BE530882A (en:Method) 1953-08-03

Country Status (4)

Country Link
US (1) US2685514A (en:Method)
BE (1) BE530882A (en:Method)
FR (1) FR1143615A (en:Method)
GB (1) GB767703A (en:Method)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840471A (en) * 1956-09-06 1958-06-24 Francis G Berry Photographic film developer
US3062643A (en) * 1959-05-22 1962-11-06 Eastman Kodak Co Photographic diffusion transfer process
US3719494A (en) * 1970-10-30 1973-03-06 Eastman Kodak Co Silver halide emulsion containing a dihydroaromatic quaternary salt nucleating agent and the use thereof
JPS5710141A (en) * 1980-06-20 1982-01-19 Fuji Photo Film Co Ltd Photographic element for color diffusion transfer
DE3788600T2 (de) * 1986-07-22 1994-04-28 Fuji Photo Film Co Ltd Verfahren zur Behandlung eines farbphotographischen Silberhalogenidmaterials.
US5384232A (en) * 1991-12-02 1995-01-24 E. I. Du Pont De Nemours And Company Process for rapid access development of silver halide films using pyridinium as development accelerators

Also Published As

Publication number Publication date
FR1143615A (fr) 1957-10-03
GB767703A (en) 1957-02-06
US2685514A (en) 1954-08-03

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