Light diffusing surface structure for a light guide in an inform

Details Light diffusing surface structure for a light guide in an inform Light diffusing surface structure for a light guide in an inform

1980-03-25

1982-01-12

Corbin, John K.

350167, 350334, G02B 2700, G02B 502

Patent

active

043102190

ABSTRACT:
A light diffusing surface structure is provided for a light guide in a passive information display wherein the surface geometry of regular texture is formed by portions of circular cylinders having their axes parallel to the general plane of the surface such cylinder portions intersecting one another at angles of 60.degree. or 90.degree. and producing a continuous diffusion at any angle of vision.

REFERENCES:
patent: 2716919 (1955-09-01), Beard
patent: 3840695 (1974-10-01), Fischer
patent: 4043636 (1977-08-01), Eberhardt et al.
IBM Technical Disclosure Bulletin, vol. 15, No. 8, Jan. 1973, pp. 2435-24 entitled "Combination Reflective/Transmissive Liquid Crystal Display".

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