CH533851A - Process for the production of direct positive photographic images with the aid of direct positive photographic emulsions - Google Patents

Process for the production of direct positive photographic images with the aid of direct positive photographic emulsions

Info

Publication number
CH533851A
CH533851A CH425070A CH425070A CH533851A CH 533851 A CH533851 A CH 533851A CH 425070 A CH425070 A CH 425070A CH 425070 A CH425070 A CH 425070A CH 533851 A CH533851 A CH 533851A
Authority
CH
Switzerland
Prior art keywords
direct positive
positive photographic
aid
production
emulsions
Prior art date
Application number
CH425070A
Other languages
German (de)
Inventor
Leopold Florens Raymond
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
Publication of CH533851A publication Critical patent/CH533851A/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
CH425070A 1969-04-02 1970-03-20 Process for the production of direct positive photographic images with the aid of direct positive photographic emulsions CH533851A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1716269A GB1299868A (en) 1969-04-02 1969-04-02 Production of direct positive silver images

Publications (1)

Publication Number Publication Date
CH533851A true CH533851A (en) 1973-02-15

Family

ID=10090380

Family Applications (1)

Application Number Title Priority Date Filing Date
CH425070A CH533851A (en) 1969-04-02 1970-03-20 Process for the production of direct positive photographic images with the aid of direct positive photographic emulsions

Country Status (6)

Country Link
BE (1) BE748058A (en)
CA (1) CA943802A (en)
CH (1) CH533851A (en)
DE (1) DE2015152C2 (en)
FR (1) FR2042173A5 (en)
GB (1) GB1299868A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1194334A (en) * 1966-09-19 1970-06-10 Agfa Gevaert Nv Developing Direct-Positive Silver Halide Photographic Materials

Also Published As

Publication number Publication date
GB1299868A (en) 1972-12-13
CA943802A (en) 1974-03-19
FR2042173A5 (en) 1971-02-05
DE2015152A1 (en) 1970-10-15
DE2015152C2 (en) 1983-01-13
BE748058A (en) 1970-09-28

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Legal Events

Date Code Title Description
PL Patent ceased