Film cassette containing pre-exposed film

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

1990-10-21

1993-02-16

Gellner, Michael L.

G03B 100

Patent

active

051875128

ABSTRACT:
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.

REFERENCES:
patent: 3815147 (1974-06-01), Wick et al.
patent: 4310232 (1982-01-01), Reed
patent: 4427279 (1984-01-01), Edelstein et al.
patent: 4655570 (1987-04-01), Jaffe
patent: 4707106 (1987-11-01), Johnson et al.
patent: 4801957 (1989-01-01), Vandemoere
patent: 4816848 (1989-03-01), Doyle
patent: 4827291 (1989-05-01), Guez
patent: 4896176 (1990-01-01), Barrett
patent: 4994832 (1991-02-01), Spector
patent: 5142311 (1992-08-01), Olson et al.

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