Method for hiding scratches or imperfections on the surface of s

Details Method for hiding scratches or imperfections on the surface of s Method for hiding scratches or imperfections on the surface of s

1991-12-05

1992-12-08

Wintercorn, Richard A.

Optical: systems and elements

Projection screen

Embedded particles

359453, G03B 2156

Patent

active

051702878

ABSTRACT:
A novel light diffusing resin (material) has been invented which combines excellent light diffusing properties with high light transmission. The combination of properties is possible because the material does not significantly backscatter light. Also, the material exhibits good contact clarity. This light diffusing material is an excellent choice for use in projection systems as a method for hiding scratches or imperfections in a rear projection screen such as TV screen, rear projected slides, liquid crystal display (LCD) screens or thin layer electric decoration sheet by using a plastic sheet containing a specific light diffusing particles therein and having a combination of properties including high light transmission properties that does not significantly backscatter ambient light from outside illuminating sources.

REFERENCES:
patent: 3679451 (1972-07-01), Marks et al.
patent: 3751527 (1973-08-01), Bortnick

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