GB193364A - Improvements in or relating to colour photography - Google Patents

Improvements in or relating to colour photography

Info

Publication number
GB193364A
GB193364A GB256123A GB256123A GB193364A GB 193364 A GB193364 A GB 193364A GB 256123 A GB256123 A GB 256123A GB 256123 A GB256123 A GB 256123A GB 193364 A GB193364 A GB 193364A
Authority
GB
United Kingdom
Prior art keywords
colour photography
exposure
relating
emulsion
light
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
GB256123A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB193364A publication Critical patent/GB193364A/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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/26—Silver halide emulsions for subtractive colour processes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

193,364. Kelley, W. van D. Aug. 13, 1921. Addition to 193,069. Colour photography; plates, films, and papers. -In carrying out the process described in the parent Specification the film, plate or other carrier is coated with a sensitive emulsion impregnated with a fugitive or soluble light retarding dye such as tartrazin adapted to be washed out in the development following the exposure, so as to slow the passage of the light through the emulsion and cause a residue of sensitive silver to be left for the second exposure.
GB256123A 1921-08-13 1921-08-13 Improvements in or relating to colour photography Expired GB193364A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB256121 1921-08-13

Publications (1)

Publication Number Publication Date
GB193364A true GB193364A (en) 1923-02-13

Family

ID=9741733

Family Applications (1)

Application Number Title Priority Date Filing Date
GB256123A Expired GB193364A (en) 1921-08-13 1921-08-13 Improvements in or relating to colour photography

Country Status (1)

Country Link
GB (1) GB193364A (en)

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