Translucent projection screen for rear-type image projection sys

Details Translucent projection screen for rear-type image projection sys Translucent projection screen for rear-type image projection sys

1981-01-22

1982-11-30

Wintercorn, Richard A.

G03B 2160

Patent

active

043613829

ABSTRACT:
A translucent projection screen for a rear-type image projection system comprising a flat plate or sheet of transparent resin into which are uniformly dispersed or distributed spherical glass beads, which are light diffusing materials. Such screen as described above is fabricated by dispersing or distributing spherical glass beads into a transparent resin, extruding and cutting the resin into pellets and forming these pellets into a flat plate or sheet by compression molding. A translucent projection screen having a Fresnel lens surface and a lenticular lens surface can be also molded by one step.

REFERENCES:
patent: 3173332 (1965-03-01), Thompson et al.
patent: 3346674 (1967-10-01), Kidder et al.
patent: 3712707 (1973-01-01), Henkes, Jr.

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