Cathode for electron gun with band-shaped beams

Details Cathode for electron gun with band-shaped beams Cathode for electron gun with band-shaped beams

1997-09-22

1999-09-21

Patel, Vip

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313454, 315 131, H01J 146

Patent

active

059558296

ABSTRACT:
Electron gun with band-shaped beams that includes a vacuum chamber extend in a longitudinal direction, a beam window running in the longitudinal direction along the vacuum chamber, and a cathode control-electrode system positioned within the vacuum chamber in the longitudinal direction. The cathode control-electrode system includes at least one substantially straight cathode positioned substantially parallel to a longitudinal axis of the cathode control-electrode system and the at least one substantially straight cathode has bulges formed at defined distances. The bulges are shaped to produce a substantially homogeneous current density distribution along the at least one substantially straight cathode and support units are located in the cathode control-electrode system to correspond with the bulges. The bulges are removably couplable to the support units.

REFERENCES:
patent: 2659023 (1953-11-01), Agule
patent: 3831052 (1974-08-01), Knechtli
patent: 3863163 (1975-01-01), Farrell et al.
patent: 3925670 (1975-12-01), Farrell et al.
patent: 4095115 (1978-06-01), Orr, Jr. et al.
patent: 4163172 (1979-07-01), Loda
patent: 4359660 (1982-11-01), Smith et al.
patent: 4499405 (1985-02-01), Loda
patent: 5019744 (1991-05-01), Lee

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