CA927176A - Photographic materials - Google Patents

Photographic materials

Info

Publication number
CA927176A
CA927176A CA065139A CA65139A CA927176A CA 927176 A CA927176 A CA 927176A CA 065139 A CA065139 A CA 065139A CA 65139 A CA65139 A CA 65139A CA 927176 A CA927176 A CA 927176A
Authority
CA
Canada
Prior art keywords
photographic materials
photographic
materials
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA065139A
Inventor
Paul B. Gilman, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Application granted granted Critical
Publication of CA927176A publication Critical patent/CA927176A/en
Expired legal-status Critical Current

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
    • G03C1/28—Sensitivity-increasing substances together with supersensitising substances
CA065139A 1968-11-15 1969-10-17 Photographic materials Expired CA927176A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77626268A 1968-11-15 1968-11-15

Publications (1)

Publication Number Publication Date
CA927176A true CA927176A (en) 1973-05-29

Family

ID=25106903

Family Applications (1)

Application Number Title Priority Date Filing Date
CA065139A Expired CA927176A (en) 1968-11-15 1969-10-17 Photographic materials

Country Status (8)

Country Link
US (1) US3583870A (en)
JP (1) JPS4813059B1 (en)
BE (1) BE741748A (en)
BR (1) BR6914032D0 (en)
CA (1) CA927176A (en)
CH (1) CH526795A (en)
FR (1) FR2023388A1 (en)
GB (1) GB1283234A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3904637A (en) * 1972-04-19 1975-09-09 Eastman Kodak Co 7'a'h,8'a'h-bisbenzothiazolo(3,2-a;-3',2'-a)pyrano (3,2-c;5,6-c'+9 dipyridinium compounds and related derivatives thereof
US4207103A (en) * 1978-06-26 1980-06-10 Eastman Kodak Company Photographic print-out silver halide process
JPS59142541A (en) * 1983-02-02 1984-08-15 Fuji Photo Film Co Ltd Photographic silver halide emulsion
JPS59188641A (en) * 1983-04-11 1984-10-26 Fuji Photo Film Co Ltd Silver halide photographic emulsion
US4983508A (en) * 1987-11-18 1991-01-08 Fuji Photo Film Co., Ltd. Method for manufacturing a light-sensitive silver halide emulsion
JPH03137632A (en) * 1989-10-24 1991-06-12 Fuji Photo Film Co Ltd Preparation of photographic silver halide emulsion
US5536634A (en) * 1994-09-30 1996-07-16 Eastman Kodak Company Silver halide emulsions spectrally sensitized in the presence of low N-alkyl pyridinium ions
CN104860875A (en) * 2015-05-14 2015-08-26 上海大学 Substituent acetophenone group purpurine derivative of high-sensitivity color changing material and synthetic method thereof
CN108373444A (en) * 2018-03-09 2018-08-07 上海大学 Fluorescence viologen derivative and its application and preparation method

Also Published As

Publication number Publication date
BR6914032D0 (en) 1973-01-18
US3583870A (en) 1971-06-08
CH526795A (en) 1972-08-15
GB1283234A (en) 1972-07-26
BE741748A (en) 1970-04-16
FR2023388A1 (en) 1970-08-21
JPS4813059B1 (en) 1973-04-25
DE1957187A1 (en) 1970-10-29

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