BE757384A - Emulsions photographiques a positif direct - Google Patents

Emulsions photographiques a positif direct

Info

Publication number
BE757384A
BE757384A BE757384DA BE757384A BE 757384 A BE757384 A BE 757384A BE 757384D A BE757384D A BE 757384DA BE 757384 A BE757384 A BE 757384A
Authority
BE
Belgium
Prior art keywords
photographic emulsions
direct positive
positive photographic
emulsions
direct
Prior art date
Application number
Other languages
English (en)
French (fr)
Inventor
C R Burt
P A Ciavarri Jr
Original Assignee
Du Pont
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 date
Publication of BE757384A publication Critical patent/BE757384A/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
    • G03C1/48523—Direct positive emulsions prefogged characterised by the desensitiser
    • G03C1/4853—Direct positive emulsions prefogged characterised by the desensitiser polymethine dyes
    • 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)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
BE757384D 1969-10-13 Emulsions photographiques a positif direct BE757384A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86597669A 1969-10-13 1969-10-13

Publications (1)

Publication Number Publication Date
BE757384A true BE757384A (fr) 1971-04-13

Family

ID=25346643

Family Applications (1)

Application Number Title Priority Date Filing Date
BE757384D BE757384A (fr) 1969-10-13 Emulsions photographiques a positif direct

Country Status (5)

Country Link
US (1) US3647455A (xx)
BE (1) BE757384A (xx)
DE (1) DE2049797C3 (xx)
FR (1) FR2065337A5 (xx)
GB (1) GB1282084A (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1427525A (en) * 1972-07-13 1976-03-10 Agfa Gevaert Directpositive silver halide emulsions
DE2260117A1 (de) * 1972-12-08 1974-06-12 Agfa Gevaert Ag Photographisches material zur herstellung direktpositiver bilder
US4045228A (en) * 1972-12-08 1977-08-30 Agfa-Gevaert N.V. Direct positive emulsions containing fogged, monodispersed silver halide grains having more than 10 mile % iodide
DE2263246A1 (de) * 1972-12-23 1974-07-04 Agfa Gevaert Ag Photographisches material zur herstellung direktpositiver photographischer bilder
US3871887A (en) * 1974-01-02 1975-03-18 Eastman Kodak Co Photothermographic composition, element and process
DE69424981T2 (de) * 1993-10-20 2001-01-11 Agfa Gevaert Nv Hochauflösendes radiographisches Aufzeichnungselement
US5411855A (en) * 1993-12-16 1995-05-02 Eastman Kodak Company Photographic element exhibiting improved speed and stability

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3249440A (en) * 1963-03-15 1966-05-03 Du Pont Radiation-sensitive elements and their preparation
US3367780A (en) * 1963-08-19 1968-02-06 Eastman Kodak Co Direct-print photographic silver halide emulsions
US3361564A (en) * 1964-08-27 1968-01-02 Du Pont Amine borane as fogging agent in direct positive
GB1112941A (en) * 1965-01-02 1968-05-08 Smiths Industries Ltd Improvements in or relating to scanning apparatus
US3445235A (en) * 1965-07-15 1969-05-20 Du Pont Rhodium and iridium salts as anti-kinking agent in direct positive silver halide emulsions
US3510348A (en) * 1966-03-11 1970-05-05 Eastman Kodak Co Direct positive recording film
US3505070A (en) * 1966-03-11 1970-04-07 Eastman Kodak Co Direct positive emulsion containing dimethine dyes containing a 2-aromatically substituted indole nucleus
US3501312A (en) * 1968-07-22 1970-03-17 Eastman Kodak Co Direct positive silver halide emulsions containing trimethine cyanine dyes

Also Published As

Publication number Publication date
FR2065337A5 (xx) 1971-07-23
DE2049797A1 (de) 1971-05-19
GB1282084A (en) 1972-07-19
US3647455A (en) 1972-03-07
DE2049797B2 (de) 1973-04-19
DE2049797C3 (de) 1973-11-08

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