Film support element assembly

Details Film support element assembly Film support element assembly

1982-08-12

1984-04-10

Hayes, Monroe H.

Optics: motion pictures

Camera and/or projector drive mechanisms

With continuous feed and intermittent film arresting means

350582, 15100, 15214, G03B 100

Patent

active

044417969

ABSTRACT:
A film support element assembly is disclosed, primarily for supporting film in relation to a projection aperture in a motion picture projector having a rolling loop film transport mechanism. In a preferred embodiment the film support element is a so-called "field flattener" and has a cylindrically curved surface over which successive frames in the film are laid by the mechanism. Cleaning means are provided adjacent the film path and the lens element can be displaced to bring a fresh portion of the surface into the film path. At the same time, the cleaning means remove debris from the surface. In one embodiment the lens element is vibrated to discourage adhesion of debris.

REFERENCES:
patent: 2967119 (1961-01-01), Gutterman
patent: 3171683 (1965-03-01), Ludwig

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