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FR941053A - Method for producing photographic contrasts - Google Patents

Method for producing photographic contrasts

Info

Publication number
FR941053A
FR941053A FR941053DA FR941053A FR 941053 A FR941053 A FR 941053A FR 941053D A FR941053D A FR 941053DA FR 941053 A FR941053 A FR 941053A
Authority
FR
France
Prior art keywords
producing photographic
contrasts
photographic contrasts
producing
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
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR941053A publication Critical patent/FR941053A/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
    • G03C1/52—Compositions containing diazo compounds as photosensitive substances
    • G03C1/62—Metal compounds reducible to metal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
FR941053D 1946-01-18 1947-01-16 Method for producing photographic contrasts Expired FR941053A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL123018 1946-01-18

Publications (1)

Publication Number Publication Date
FR941053A true FR941053A (en) 1948-12-31

Family

ID=19750393

Family Applications (1)

Application Number Title Priority Date Filing Date
FR941053D Expired FR941053A (en) 1946-01-18 1947-01-16 Method for producing photographic contrasts

Country Status (7)

Country Link
US (1) US2571671A (en)
BE (1) BE470580A (en)
CH (1) CH263994A (en)
DE (1) DE854886C (en)
FR (1) FR941053A (en)
GB (1) GB678911A (en)
NL (1) NL66149C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE506160A (en) * 1950-10-03
US2733144A (en) * 1951-03-28 1956-01-31 Method of producing photographic

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US466534A (en) * 1892-01-05 Island
US1396770A (en) * 1919-06-14 1921-11-15 Eastman Kodak Co Method and apparatus for making photographic records
BE343949A (en) * 1926-07-09
US1904449A (en) * 1927-05-20 1933-04-18 Gen Electric Sound record film and film printing apparatus
US1861918A (en) * 1928-01-30 1932-06-07 Eastman Kodak Co Process of conditioning photographic films
US1880496A (en) * 1929-06-14 1932-10-04 Eastman Kodak Co Photographic film for sound and picture purposes
NL46296C (en) * 1930-02-05
FR735718A (en) * 1931-07-21 1932-11-14 Process for preparing and fixing photographic layers obtained with dazosulphonates
FR741172A (en) * 1931-11-09 1933-02-08
US2062304A (en) * 1931-11-19 1936-12-01 Gaspar Bela Process for the production of a colored sound film
US1997507A (en) * 1932-03-09 1935-04-09 Vladimir C Akintievsky Process of photo-printing
BE407017A (en) * 1933-12-27
GB503092A (en) * 1937-05-27 1939-03-26 Eastman Kodak Co Improved process of treating sensitive photographic film
BE429591A (en) * 1937-08-09
US2252006A (en) * 1938-01-08 1941-08-12 Hartford Nat Bank & Trust Co Sound-picture film and method of printing the same
FR853868A (en) * 1938-11-19 1940-03-30 Method for obtaining reproduction of images by means of disazo compounds

Also Published As

Publication number Publication date
US2571671A (en) 1951-10-16
BE470580A (en)
GB678911A (en) 1952-09-10
CH263994A (en) 1949-09-30
NL66149C (en)
DE854886C (en) 1952-11-06

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