Electron feeder for flat-type luminous device

Details Electron feeder for flat-type luminous device Electron feeder for flat-type luminous device

1991-05-15

1992-09-01

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

313423, 313414, H01J 2950, H01J 162, G09G 330

Patent

active

051441985

ABSTRACT:
An electron feeder for a flat-type luminous device capable of providing electrons sufficient to ensure the uniform luminance of a whole display section irrespective of a distance from an electron source. A plurality of front electrodes and a plurality of rear electrodes constituting an electron beam guide are arranged separate from one another in the direction of traveling of the electrons, respectively, and the front electrode and rear electrode corresponding to each other constitute each guide electrode section. The so-constructed guide electrode sections are alternately applied thereto two different voltages, resulting in the electron beam guide exhibiting the function of focusing electrons.

REFERENCES:
patent: 4137478 (1979-01-01), Credelle
patent: 4153856 (1979-05-01), Siekanowicz et al.
patent: 4158157 (1979-06-01), Schwartz
patent: 4335332 (1982-06-01), Credelle
patent: 4577133 (1986-03-01), Wilson
patent: 4641058 (1987-02-01), Koshigoe et al.
patent: 4672262 (1987-06-01), Stewart et al.
patent: 4752721 (1988-06-01), Nishida et al.
patent: 4853587 (1989-08-01), Lamport et al.

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