Cathode assembly having thermion emitter of cermet pallet

Details Cathode assembly having thermion emitter of cermet pallet Cathode assembly having thermion emitter of cermet pallet

1997-02-03

1998-10-13

Patel, Vip

Electric lamp and discharge devices

Electrode and shield structures

Cathodes containing and/or coated with electron emissive...

313446, 313346DC, 313270, H01J 115

Patent

active

058216839

ABSTRACT:
The present invention relates to a cathode assembly employing a cermet pellet and a method for manufacturing the same. The cathode assembly of the present invention has a good quality such as a low work function and an enhanced life span as compared with the conventional cathode assembly. Also, since the method for manufacturing a cermet pellet is more simplified than that of the cermet thin film, the cathode assembly employing the cermet pellet according to the present invention can be manufactured with ease and at a low cost.

REFERENCES:
patent: 3745403 (1973-07-01), Misumi

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