Film cassette containing pre-exposed film

Details Film cassette containing pre-exposed film Film cassette containing pre-exposed film

G - Physics

03

B

G03B 15/08 (2006.01) G03B 17/24 (2006.01) G03C 11/14 (2006.01)

Patent

CA 2074009

During manufacture each frame of a film strip has one portion masked while the frame is exposed to light. Said light impinges on a second portion of the frame to form a latent image. The film strip is mounted within a camera where the previously unexposed portion of the frame is exposed to a second image bearing light while the pre-exposed portion of the frame is masked from said second light the strip of film is removed from the camera to develop the two latent images as a single photograph.

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