Shielded cathode support structure

Details Shielded cathode support structure Shielded cathode support structure

1977-04-28

1978-07-18

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313451, H01J 2902, H01J 2982

Patent

active

041018010

ABSTRACT:
A shielded cathode support structure for electron gun assemblies of a cathode ray tube includes a cup-shaped control grid electrode, a cathode having emissive coating on a closed end, an eyelet member having one end affixed to and supporting the cathode and the opposite end flared and disposed within the control grid electrode to combine to provide a shield for cathode sublimation, and a support member having an upstanding flared portion surrounding an aperture for receiving the eyelet member and for contacting the flared end of the eyelet member with the support member affixed to an insulator rod of the electron gun assembly.

REFERENCES:
patent: 3351792 (1967-11-01), Kuryla
patent: 3549929 (1970-12-01), Pappadis
patent: 4063128 (1977-12-01), Hughes

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