CH526795A - Matériel photographique positif direct - Google Patents

Matériel photographique positif direct

Info

Publication number
CH526795A
CH526795A CH1698669A CH1698669A CH526795A CH 526795 A CH526795 A CH 526795A CH 1698669 A CH1698669 A CH 1698669A CH 1698669 A CH1698669 A CH 1698669A CH 526795 A CH526795 A CH 526795A
Authority
CH
Switzerland
Prior art keywords
photographic material
direct positive
positive photographic
direct
positive
Prior art date
Application number
CH1698669A
Other languages
English (en)
Inventor
Brewster Jr Gilman Paul
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
Publication of CH526795A publication Critical patent/CH526795A/fr

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

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)
  • Plural Heterocyclic Compounds (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
CH1698669A 1968-11-15 1969-11-14 Matériel photographique positif direct CH526795A (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH526795A true CH526795A (fr) 1972-08-15

Family

ID=25106903

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1698669A CH526795A (fr) 1968-11-15 1969-11-14 Matériel photographique positif direct

Country Status (8)

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

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 (ja) * 1983-02-02 1984-08-15 Fuji Photo Film Co Ltd ハロゲン化銀写真乳剤
JPS59188641A (ja) * 1983-04-11 1984-10-26 Fuji Photo Film Co Ltd ハロゲン化銀写真乳剤
US4983508A (en) * 1987-11-18 1991-01-08 Fuji Photo Film Co., Ltd. Method for manufacturing a light-sensitive silver halide emulsion
JPH03137632A (ja) * 1989-10-24 1991-06-12 Fuji Photo Film Co Ltd 写真用ハロゲン化銀乳剤の製造方法
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 (zh) * 2015-05-14 2015-08-26 上海大学 高灵敏度变色材料取代苯乙酮基紫精衍生物及其合成方法
CN108373444A (zh) * 2018-03-09 2018-08-07 上海大学 荧光紫精衍生物及其应用和制备方法

Also Published As

Publication number Publication date
FR2023388A1 (fr) 1970-08-21
BR6914032D0 (pt) 1973-01-18
CA927176A (en) 1973-05-29
DE1957187A1 (de) 1970-10-29
JPS4813059B1 (fr) 1973-04-25
BE741748A (fr) 1970-04-16
GB1283234A (en) 1972-07-26
US3583870A (en) 1971-06-08

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Legal Events

Date Code Title Description
PL Patent ceased