Cathode structure for a cathode-ray tube

Details Cathode structure for a cathode-ray tube Cathode structure for a cathode-ray tube

1991-12-23

1994-03-01

O'Shea, Sandra L.

Electric lamp and discharge devices

Cathode ray tube

Ray generating or control

313456, H01J 2948

Patent

active

052910962

ABSTRACT:
A cathode structure for a cathode-ray tube includes a cathode cap coated with an electron-emissive substance for emitting electrons when heated, a cylindrical cathode sleeve attached to the bottom of the cathode cap, a heater inserted in the cathode sleeve for heating the cathode cap, a cathode sleeve holder for holding the cathode sleeve , cylindrical member for fixing the lower end of the cathode sleeve preventing electric field concentration, and a plurality of connecting arms extending from the means for connecting with the cathode sleeve holder.

REFERENCES:
patent: 3333138 (1967-07-01), Szegho

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