High power magnifying projector

Details High power magnifying projector High power magnifying projector

1992-05-01

1993-09-28

Cuchlinkski, Jr., William A.

Optics: image projectors

Miscellaneous

353 99, 353 37, G03B 2128

Patent

active

052490068

ABSTRACT:
The present disclosure describes a high power magnifying projector using a liquid crystal light valve. The projector comprises a light source for illuminating the object, a light source for projecting an image of the object in the screen, a plurality of condensing lenses, at least one selecting mirror located at the above one of the condensing lenses, a plurality of whole reflecting mirrors, an object lens secured above part of support plate, a semi-transmitting mirror secured above the object lens at an inclined angle, a liquid crystal light valve for changing and converting the direction of a particle array in accordance with the brightness of light applied thereto, and a beam splitter secured between the liquid crystal light valve and the screen, wherein the light for illuminating the object and the light for projecting the image of the object in the screen are separately used so that the projector can optionally adjust and observe the size of the object so as to magnify and project an image of a minute object.

REFERENCES:
patent: 3421815 (1969-01-01), Douitz
patent: 4519682 (1985-05-01), Mast et al.
patent: 4552441 (1985-11-01), Dewey

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