Disk film projector

Details Disk film projector Disk film projector

1984-08-28

1987-03-03

Haroian, Harry N.

Optics: image projectors

Slide transfer mechanism

Slides fixed to movable carrier

G03B 2762

Patent

active

046471677

ABSTRACT:
In a disk film projector, a desired frame of an image recorded on a rotary disk of film is selectively placed at a projecting position for reproducing a selected frame in the form of a visible image. The disk film is designed to be rotatably driven to the projecting position by either manual or electrical driving devices. The manual driving device is mechanically connected with the disk film driving shaft, while the electrical driving device is detached from the shaft unless the electrical driving device is in operation. In this manner, the electrical driving device does not act as a load when the manual driving device is used, so that manual operation of the projector will be facilitated.

REFERENCES:
patent: 2712268 (1955-07-01), Dietmann
patent: 3322035 (1967-05-01), Admon
patent: 4392743 (1983-07-01), Anderson

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