FR611670A - Process for increasing the speed of photographic plates - Google Patents

Process for increasing the speed of photographic plates

Info

Publication number
FR611670A
FR611670A FR611670DA FR611670A FR 611670 A FR611670 A FR 611670A FR 611670D A FR611670D A FR 611670DA FR 611670 A FR611670 A FR 611670A
Authority
FR
France
Prior art keywords
increasing
speed
photographic plates
photographic
plates
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)
Inventor
Yves-Marc Letort
Rene-Charles-Francoi Borde
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 filed Critical
Application granted granted Critical
Publication of FR611670A publication Critical patent/FR611670A/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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/815—Photosensitive materials characterised by the base or auxiliary layers characterised by means for filtering or absorbing ultraviolet light, e.g. optical bleaching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR611670D 1926-02-09 1926-02-09 Process for increasing the speed of photographic plates Expired FR611670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR611670T 1926-02-09

Publications (1)

Publication Number Publication Date
FR611670A true FR611670A (en) 1926-10-08

Family

ID=8978251

Family Applications (1)

Application Number Title Priority Date Filing Date
FR611670D Expired FR611670A (en) 1926-02-09 1926-02-09 Process for increasing the speed of photographic plates

Country Status (1)

Country Link
FR (1) FR611670A (en)

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