A New High-Speed Step Optical Reduction Printer

Abstract

A new high-speed motion-picture printer capable of making high-quality color prints from an original negative has been designed. A new type of film movement allows printing the film at a rate of over 50 frames/s. The design is such that, except for centrifugal acceleration, no acceleration or jerk is present in the movement. Printing speed is thus limited only by the acceleration of the film itself. A theoretical analysis shows that the maximum film acceleration is in the order of 200 Gs.

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