Thermionic cathode and heater structure on ceramic base plate

Details Thermionic cathode and heater structure on ceramic base plate Thermionic cathode and heater structure on ceramic base plate

1976-03-31

1977-10-11

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313340, 313446, H01J 2950, H01J 2946, H01J 1918

Patent

active

040538079

ABSTRACT:
A thermionic cathode structure includes a ceramic base plate, a heater layer of tungsten coated on the ceramic base plate, a cathode lead layer of tungsten formed on a ceramic insulating layer covering the heater layer, a base metal layer coated on the cathode lead layer, and a cathode material coated on the base metal layer.

REFERENCES:
patent: 3096211 (1963-07-01), Davis
patent: 3745403 (1973-07-01), Misumi
patent: 3748522 (1973-07-01), Geppert

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