Flexible, high contrast, non-glare, polarizing filter for an ill

Details Flexible, high contrast, non-glare, polarizing filter for an ill Flexible, high contrast, non-glare, polarizing filter for an ill

1980-08-25

1982-03-09

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

200 1R, 200 5R, 200 46, 200313, 340365S, 428426, B32B 1706, N01N 900

Patent

active

043189580

ABSTRACT:
An optically coated, flexible glass plate cemented to a sheet of polarizing aterial combine to provide a high contrast, non-glare, polarizing filter that can be used in combination with an illuminated switch assembly such as with conventional membrane switches.

REFERENCES:
patent: 3732389 (1973-05-01), Kaelin et al.
patent: 3777222 (1973-12-01), Harris
patent: 4251591 (1981-02-01), Chi

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