Method of making a thermionic field emitter cathode

Details Method of making a thermionic field emitter cathode Method of making a thermionic field emitter cathode

1986-10-10

1988-03-29

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Electrode making

313346DC, 313351, H01J 2904, H01J 904

Patent

active

047340738

ABSTRACT:
The face of a cathode surface is machined to provide a spiral surface fin with microscopic sharp symmetrical protrusions. The cathode gives enhanced emission due to field emission generated at the sharp symmetrical protrusions and due to the increased surface area.

REFERENCES:
patent: 2721372 (1955-10-01), Levi
patent: 2986799 (1961-06-01), Levi et al.
patent: 3303559 (1967-02-01), Holtzclaw
patent: 3376461 (1968-04-01), Millward
patent: 3594885 (1969-06-01), Miram
patent: 4165473 (1979-08-01), Falce
patent: 4300149 (1981-11-01), Howard et al.
patent: 4478590 (1984-10-01), Rychlewski
patent: 4671777 (1987-06-01), Van Esdonk et al.
patent: 4675570 (1987-06-01), Green

Affiliated with

Also associated with

Rating

Method of making a thermionic field emitter cathode does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making a thermionic field emitter cathode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making a thermionic field emitter cathode will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1086966