Electron emitter and process of fabrication

Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube

Reexamination Certificate

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C313S309000, C313S310000, C313S336000, C313S351000

Reexamination Certificate

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10754675

ABSTRACT:
An electron emitter is formed by in situ growth from the vapor on catalyst clusters that are adhered by an adhesion layer to a conductive electrode. The emitter comprises hemispheroidal nanofiber clusters that emit electrons at low field strengths and high current densities, producing bright light by the interaction of the electrons and a fluorescent and/or phosphorescent film on an anode spaced across an evacuated gap. The nanofibers may be grown such that the nanofiber clusters are entangled, restricting movement of individual nanofibers.

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