Photographic film pre-exposure apparatus and method

Details Photographic film pre-exposure apparatus and method Photographic film pre-exposure apparatus and method

1996-07-26

1998-08-11

Gray, David M.

Photography

Plural image recording

355 95, 355132, G03B 4100

Patent

active

057940878

ABSTRACT:
Bulk rolls of film are pre-exposed with a latent image of artwork positioned within a film frame. Multiple frames, each having an artwork image portion and an opaque portion, are formed within an imaging filmstrip formed in a continuous loop. The continuous loop is rotated while a portion of the filmstrip is in contact with a portion of the bulk film for transferring the artwork image from the filmstrip to the bulk film. The bulk film is advanced while a light source exposes the film when in contact with the filmstrip. The pre-exposed bulk roll of film is punched at preselected sprocket holes corresponding to the filmstrip length for providing a reference sprocket hole within each length of film cut from the bulk roll for loading within a camera for double exposure of the film and placement of a second latent image in juxtaposition with the artwork.

REFERENCES:
patent: 5546146 (1996-08-01), Dobbs et al.
patent: 5613165 (1997-03-01), Dobbs et al.

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