Cathode ray tube panel

Details Cathode ray tube panel Cathode ray tube panel

1978-06-29

1979-12-18

Demeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Envelope

106 53, H01J 2986, C03C 304

Patent

active

041796381

ABSTRACT:
There is disclosed an improved glass panel for a cathode ray tube adapted to use in color television reception. The panel glass undergoes a minimum amount of compaction on reheating, has a strain point greater than 470.degree. C., a liquidus below 900.degree. C., and a composition selected from a family within the SiO.sub.2 -Al.sub.2 O.sub.3 -MgO-CaO-SrO-BaO-PbO-Na.sub.2 O-K.sub.2 O field. Special additives in minor amounts include TiO.sub.2, CeO.sub.2, Sb.sub.2 O.sub.3, As.sub.2 O.sub.3, F, and oxide colorants.

REFERENCES:
patent: 3987330 (1976-10-01), Shell
patent: 4065696 (1977-12-01), Steierman
patent: 4065697 (1977-12-01), Steierman

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