Low reflectance display device

Details Low reflectance display device Low reflectance display device

1987-09-04

1989-01-17

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Envelope

313112, 350166, 350164, H01J 2988, G02B 110

Patent

active

047989947

ABSTRACT:
An anti-reflection coating which comprises at least a three layer interference filter is evaporated on the external surface of a faceplate panel. The manufacture of the coating can be speeded-up substantially by selecting high and low refractive index materials which can be evaporated at ambient temperatures and subsequently hardened by high temperature annealing outside the evaporation apparatus. The annealing is carried out most conveniently during the standard processing of a cathode ray tube.

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patent: 4568140 (1986-02-01), Van Derwerf et al.
"Reactively Sputtered Optical Coatings . . . ", by W. T. Pawlewicz et al., NBS Spec. Publ. (U.S.) 1980, 568, 359-75 (ENG.).

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