BE512294A - - Google Patents

Info

Publication number
BE512294A
BE512294A BE512294DA BE512294A BE 512294 A BE512294 A BE 512294A BE 512294D A BE512294D A BE 512294DA BE 512294 A BE512294 A BE 512294A
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 BE512294A publication Critical patent/BE512294A/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

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)
  • Photosensitive Polymer And Photoresist Processing (AREA)
BE512294D 1951-06-27 BE512294A (ko)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US233774A US2675318A (en) 1951-06-27 1951-06-27 Hydroquinone monosulfonate in direct positive photographic developers

Publications (1)

Publication Number Publication Date
BE512294A true BE512294A (ko)

Family

ID=22878637

Family Applications (1)

Application Number Title Priority Date Filing Date
BE512294D BE512294A (ko) 1951-06-27

Country Status (4)

Country Link
US (1) US2675318A (ko)
BE (1) BE512294A (ko)
FR (1) FR1078936A (ko)
GB (1) GB712374A (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1047492A (ko) * 1963-01-10
DE2406515C3 (de) * 1974-02-12 1978-06-15 Du Pont De Nemours (Deutschland) Gmbh, 4000 Duesseldorf Photographisches Material für die Herstellung von Direktpositiven
EP0782041B1 (en) 1995-12-27 1999-11-17 Fuji Photo Film Co., Ltd. Silver halide photographic light-sensitive material
US5789139A (en) 1995-12-27 1998-08-04 Fuji Photo Film Co., Ltd. Hydrazide compound and silver halide photographic photosensitive material comprising the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572903A (en) * 1944-06-22 1951-10-30 Gen Aniline & Film Corp Photographic developer containing thallium salts
US2458376A (en) * 1946-03-14 1949-01-04 Eastman Kodak Co Photographic developer antioxidants
NL72136C (ko) * 1947-05-22
US2497875A (en) * 1947-10-17 1950-02-21 Eastman Kodak Co Direct positive photographs using aerial fogging developer
BE502879A (ko) * 1950-04-29
BE510220A (ko) * 1951-03-28

Also Published As

Publication number Publication date
GB712374A (en) 1954-07-21
US2675318A (en) 1954-04-13
FR1078936A (fr) 1954-11-24

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