CA1013193A - Direct-positive photographic silver halide emulsions - Google Patents

Direct-positive photographic silver halide emulsions

Info

Publication number
CA1013193A
CA1013193A CA163,335A CA163335A CA1013193A CA 1013193 A CA1013193 A CA 1013193A CA 163335 A CA163335 A CA 163335A CA 1013193 A CA1013193 A CA 1013193A
Authority
CA
Canada
Prior art keywords
direct
silver halide
halide emulsions
photographic silver
positive photographic
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
CA163,335A
Other languages
English (en)
Other versions
CA163335S (en
Inventor
Herman A. Pattyn
Willy J. Vanassche
Hendrik A. Borginon
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.)
Agfa Gevaert NV
Original Assignee
Agfa Gevaert NV
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 Agfa Gevaert NV filed Critical Agfa Gevaert NV
Application granted granted Critical
Publication of CA1013193A publication Critical patent/CA1013193A/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

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)
CA163,335A 1972-02-18 1973-02-09 Direct-positive photographic silver halide emulsions Expired CA1013193A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB774272A GB1416996A (en) 1972-02-18 1972-02-18 Direct positive photographic silver halide emulsions

Publications (1)

Publication Number Publication Date
CA1013193A true CA1013193A (en) 1977-07-05

Family

ID=9838851

Family Applications (1)

Application Number Title Priority Date Filing Date
CA163,335A Expired CA1013193A (en) 1972-02-18 1973-02-09 Direct-positive photographic silver halide emulsions

Country Status (7)

Country Link
US (1) US3963493A (sv)
JP (1) JPS4890728A (sv)
BE (1) BE795121A (sv)
CA (1) CA1013193A (sv)
DE (1) DE2306279A1 (sv)
FR (1) FR2172102B1 (sv)
GB (1) GB1416996A (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081281A (en) * 1972-02-18 1978-03-28 Agfa-Gevaert N.V. Developing low fogged, direct-positive silver halide emulsion with an energetic developer free from halide ions
GB1569109A (en) * 1975-12-12 1980-06-11 Agfa Gevaert Lippmann-emulsions and reversal processing thereof
JPS59177535A (ja) * 1983-03-28 1984-10-08 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真乳剤およびその製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367778A (en) * 1965-04-15 1968-02-06 Eastman Kodak Co Silver salt direct positive emulsion
US3501307A (en) * 1966-03-11 1970-03-17 Eastman Kodak Co Photographic reversal materials containing organic desensitizing compounds
US3767651A (en) * 1968-07-22 1973-10-23 Eastman Kodak Co Novel cyanine dyes derived from 1,2-diphenylindoles
US3687676A (en) * 1970-07-20 1972-08-29 Eastman Kodak Co Desensitizers in unfogged silver halide systems
US3690891A (en) * 1970-07-20 1972-09-12 Eastman Kodak Co Infrared-sensitized silver halide systems
US3730723A (en) * 1971-06-17 1973-05-01 Eastman Kodak Co Direct positive processes utilizing silver halide surface image emulsions containing desensitizers

Also Published As

Publication number Publication date
DE2306279A1 (de) 1973-08-23
FR2172102B1 (sv) 1983-08-12
FR2172102A1 (sv) 1973-09-28
JPS4890728A (sv) 1973-11-27
GB1416996A (en) 1975-12-10
US3963493A (en) 1976-06-15
BE795121A (nl) 1973-08-08

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