Armless transparency projector

Details Armless transparency projector Armless transparency projector

1994-08-15

1995-08-15

Cuchlinski, Jr., William A.

Optics: image projectors

Housing

353DIG3, G03B 2128

Patent

active

054424151

ABSTRACT:
An armless transparency projector comprises: a projector main body having an opening; a light source lamp installed inside the projector main body for emitting light needed to project a picture on a distant screen; a Fresnel lens tilted at an angle as to catch the light from the light source, and installed inside the projector main body for holding a transparency; an image reflecting mirror installed inside the projector main body for reflecting the converging light from the Fresnel lens; and a projector lens installed inside the projector main body for projecting the image converged through the aperture of the projector lens along the light axis, to the distant screen.

REFERENCES:
patent: 5033842 (1991-07-01), Tam
patent: 5090800 (1992-02-01), Ushiroe
patent: 5321450 (1994-06-01), Shapiro et al.
patent: 5325137 (1994-06-01), Konno et al.

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