Anti-glare filter with improved viewing area

Details Anti-glare filter with improved viewing area Anti-glare filter with improved viewing area

1989-03-06

1991-02-26

Arnold, Bruce Y.

350339F, G02B 2700

Patent

active

049957015

ABSTRACT:
A filter for reducing the glare of a viewing screen caused by ambient light and increasing the viewing area constructed of a substantially transparent sheet of material having first and second faces. The first face is substantially planar while the second face has a plurality of V-shaped grooves, each groove being formed by two walls. The geometry of the V-shaped grooves is such that ambient light enters the filter and becomes trapped therein due to internal reflection.

REFERENCES:
patent: 4165920 (1979-08-01), Brown
patent: 4473277 (1984-09-01), Brown
patent: 4697881 (1987-10-01), Brown
patent: 4756603 (1988-07-01), Ohtani

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