Method of reducing the reflectance of a transparent viewing scre

Details Method of reducing the reflectance of a transparent viewing scre Method of reducing the reflectance of a transparent viewing scre

1986-11-03

1988-03-15

Boudreau, Leo H.

Electric lamp and discharge devices

Cathode ray tube

Envelope

313474, 313116, 358252, H01J 2989, H01J 920

Patent

active

047315580

ABSTRACT:
A viewing screen is described, in particular the screen of a display tube, which has excellent anti-reflective properties and a method of making this screen anti-reflective. In this method the outer surface of the screen is mechanically roughened in conformity with specific requirements and subsequently an anti-reflective coating of constant thickness is applied to the roughened surface.

REFERENCES:
patent: 2044350 (1934-04-01), Edwards et al.
patent: 2612611 (1952-09-01), Szego et al.
patent: 3504212 (1970-03-01), Wollentin et al.
patent: 4410310 (1983-10-01), Halbrook

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