Shutterless optical system for viewing motion pictures

Details Shutterless optical system for viewing motion pictures Shutterless optical system for viewing motion pictures

1981-07-30

1983-09-20

Hayes, Monroe H.

Optics: motion pictures

Optical rectifier type

Rotating reflector drum

352198, G03B 4106

Patent

active

044052189

ABSTRACT:
A shutterless optical system for viewing motion pictures, especially suitable for an 8 mm viewer, is disclosed in which the film moves continuously in a circular path around the optical center of a lens. The motion of the film is compensated by a rotating mirror wheel--a disk or wheel of outward-facing flat mirrored surfaces. The error in one dimension ordinarily resulting from the curvature of the film path is avoided by use of a line light source and a lens between the source and the film.

REFERENCES:
patent: 1771509 (1930-07-01), Ott
patent: 2255892 (1941-09-01), Leventhal
patent: 2843006 (1958-07-01), Tyler
patent: 4187008 (1980-02-01), Keznickl

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