CRT comprising strontium metal getter films and method of prepar

Details CRT comprising strontium metal getter films and method of prepar CRT comprising strontium metal getter films and method of prepar

1974-12-13

1976-04-20

Rolinec, R. V.

Electric lamp and discharge devices

Cathode ray tube

Envelope

313174, 313178, H01J 1970

Patent

active

039522261

ABSTRACT:
Apertured-mask cathode-ray tube comprises a strontium metal getter film on at least a portion of the electron-beam-receiving surface of the mask. The method comprises sealing into the tube a mass comprising a strontium-aluminum alloy, heating the mass above 1100.degree.C until a substantial proportion of the strontium is liberated and vaporized, and condensing the vaporized strontium as a metal film on internal surfaces of the tube.

REFERENCES:
patent: 2843777 (1958-07-01), Szegho
patent: 3153190 (1964-10-01), Spalding

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