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
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 BE476292A publication Critical patent/BE476292A/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
    • G03C1/48515—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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
BE476292D 1946-04-01 BE476292A (de)

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 (de)

Family

ID=9959998

Family Applications (1)

Application Number Title Priority Date Filing Date
BE476292D BE476292A (de) 1946-04-01

Country Status (4)

Country Link
US (1) US2500140A (de)
BE (1) BE476292A (de)
FR (1) FR953646A (de)
GB (1) GB626053A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB462730A (de) *
US2005837A (en) * 1931-07-07 1935-06-25 Agfa Ansco Corp Manufacture of photographic emulsions

Also Published As

Publication number Publication date
US2500140A (en) 1950-03-07
GB626053A (en) 1949-07-08
FR953646A (fr) 1949-12-09

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