Electron emission device comprising carbon nanotubes yarn...

Details Electron emission device comprising carbon nanotubes yarn... Electron emission device comprising carbon nanotubes yarn...

2006-06-28

2009-12-29

Roy, Sikha (Department: 2879)

Electric lamp and discharge devices

Electrode and shield structures

Composite electrodes or shields

C313S310000, C313S34600R, C315S032000, C315S049000, C315S163000, C315S169100

Reexamination Certificate

active

07638933

ABSTRACT:
An exemplary electron emission device includes an electron emitter, an anode opposite to and spaced apart from the electron emitter, a first power supply circuit, and a second power supply circuit. The first power supply circuit is configured for electrically connecting the electron emitter and the anode with a power supply to generate an electric field between the electron emitter and the anode. The second power supply circuit is configured for electrically connecting the electron emitter with a power supply to supply a heating current for heating the electron emitter whereby electrons emit therefrom. Methods for generating an emission current with a relatively higher stability also are provided.

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