Electron emitting element

Details Electron emitting element Electron emitting element

1991-05-16

1993-02-23

Yusko, Donald J.

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

315334, 315337, 313309, 313336, 313351, H01J 102

Patent

active

051893410

ABSTRACT:
An electron emitting element capable of preventing pollution of the emitter due to absorption of gas thereon, to thereby ensure stable emission of electrons over a long period of time even in a low vacuum atmosphere. The electron emitting element is constructed so as to permit a part of electrons emitted from one of emitters to impinge on the other of the emitters being ready for emission to clean it.

REFERENCES:
patent: 3308330 (1967-03-01), Charles
patent: 3755704 (1973-08-01), Spindt et al.
patent: 4904895 (1990-02-01), Tsukamoto et al.
patent: 4908539 (1990-03-01), Meyer

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