CH472050A - Photographic emulsion for direct positive - Google Patents

Photographic emulsion for direct positive

Info

Publication number
CH472050A
CH472050A CH332667A CH332667A CH472050A CH 472050 A CH472050 A CH 472050A CH 332667 A CH332667 A CH 332667A CH 332667 A CH332667 A CH 332667A CH 472050 A CH472050 A CH 472050A
Authority
CH
Switzerland
Prior art keywords
photographic emulsion
direct positive
positive
direct
photographic
Prior art date
Application number
CH332667A
Other languages
French (fr)
Inventor
David Illingsworth Bernard
Original Assignee
Kodak Sa
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.)
Filing date
Publication date
Application filed by Kodak Sa filed Critical Kodak Sa
Publication of CH472050A publication Critical patent/CH472050A/en

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
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/10—Organic substances
    • G03C1/12—Methine and polymethine dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
CH332667A 1966-03-11 1967-03-07 Photographic emulsion for direct positive CH472050A (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
US53340066A 1966-03-11 1966-03-11
US53344866A 1966-03-11 1966-03-11
US53344066A 1966-03-11 1966-03-11
US60418166A 1966-12-23 1966-12-23
US60414666A 1966-12-23 1966-12-23
US60979467A 1967-01-17 1967-01-17
US60979367A 1967-01-17 1967-01-17
US60976267A 1967-01-17 1967-01-17
US61832067A 1967-02-24 1967-02-24

Publications (1)

Publication Number Publication Date
CH472050A true CH472050A (en) 1969-04-30

Family

ID=27578864

Family Applications (1)

Application Number Title Priority Date Filing Date
CH332667A CH472050A (en) 1966-03-11 1967-03-07 Photographic emulsion for direct positive

Country Status (6)

Country Link
BR (1) BR6787701D0 (en)
CH (1) CH472050A (en)
DE (1) DE1547790B2 (en)
DK (1) DK128869B (en)
GB (1) GB1186713A (en)
SE (1) SE345169B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3672903A (en) * 1970-02-16 1972-06-27 Eastman Kodak Co Direct-positive silver halide emulsions containing gold salt complex addenda
JPS4911563B1 (en) * 1970-05-22 1974-03-18

Also Published As

Publication number Publication date
DE1547790A1 (en) 1969-11-20
DE1547790B2 (en) 1977-06-02
DK128869B (en) 1974-07-15
BR6787701D0 (en) 1973-02-27
SE345169B (en) 1972-05-15
GB1186713A (en) 1970-04-02

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Legal Events

Date Code Title Description
PL Patent ceased