Field emission device employing a concentric post

Details Field emission device employing a concentric post Field emission device employing a concentric post

1990-08-29

1992-09-15

Yusko, Donald J.

Electric lamp and discharge devices

Discharge devices having three or more electrodes

Four or more electrodes

313308, 313309, 313355, H01J 130, H01J 1924

Patent

active

051480786

ABSTRACT:
A device providing electric-field induced electron emission includes an annular edge for emission of charged particles. Particle emission is induced, at least in part, by the presence of a conducting or semi-conducting post within the periphery of the emitting edge.

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