GB333010A - Method of superimposing a foreground or image upon a background in photography - Google Patents

Method of superimposing a foreground or image upon a background in photography

Info

Publication number
GB333010A
GB333010A GB1936229A GB1936229A GB333010A GB 333010 A GB333010 A GB 333010A GB 1936229 A GB1936229 A GB 1936229A GB 1936229 A GB1936229 A GB 1936229A GB 333010 A GB333010 A GB 333010A
Authority
GB
United Kingdom
Prior art keywords
film
foreground
pigment
image
colloid
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
GB1936229A
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.)
WALTER DEE WALKER
Original Assignee
WALTER DEE WALKER
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 WALTER DEE WALKER filed Critical WALTER DEE WALKER
Priority to GB1936229A priority Critical patent/GB333010A/en
Publication of GB333010A publication Critical patent/GB333010A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00Special procedures for taking photographs; Apparatus therefor
    • G03B15/08Trick photography

Landscapes

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

Abstract

333,010. Walker, W. D. June 24, 1929. Drawings to Specification. Composite photographs; catatype processes.- Composite photographs, especially kinematograph films, are produced by photographing a transparent film on the background illuminated from the rear, in superposition behind a film of the foreground illuminated from in front, in which the image is opaque to but reflective of light. The parts surrounding the images on the foreground film are transparent, the actors &c. being photographed in front of a white screen to produce a positive or a black screen when a negative is required. To render the images on the foreground film opaque, the emulsion side is coated with a mixture containing a colloid such as gelatin, a chromate or bichromate, e.g. ammonium bichromate, and a white pigment, e.g. Chinese white. In contact with the silver of the image the colloid becomes insoluble, binding the pigment, the mixture being then washed off the silver free parts of the film. The bichromate may be applied first and then a mixture of colloid and pigment. For television motion pictures a dark pigment, e.g. ultramarine, is used.
GB1936229A 1929-06-24 1929-06-24 Method of superimposing a foreground or image upon a background in photography Expired GB333010A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1936229A GB333010A (en) 1929-06-24 1929-06-24 Method of superimposing a foreground or image upon a background in photography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1936229A GB333010A (en) 1929-06-24 1929-06-24 Method of superimposing a foreground or image upon a background in photography

Publications (1)

Publication Number Publication Date
GB333010A true GB333010A (en) 1930-08-07

Family

ID=10128078

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1936229A Expired GB333010A (en) 1929-06-24 1929-06-24 Method of superimposing a foreground or image upon a background in photography

Country Status (1)

Country Link
GB (1) GB333010A (en)

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