Electron gun for cathode ray tube

Details Electron gun for cathode ray tube Electron gun for cathode ray tube

1989-11-20

1991-08-06

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313412, 313433, 313460, H01J 2950, H01J 2946, H01J 2962

Patent

active

050380737

ABSTRACT:
An electron gun for a cathode ray tube includes a cathode, control grid, a screen grid, and an opposed anode and focus electrode for controlling and accelerating a plurality of electron beams, the anode and the focus electrode including recesses containing aligned central beam passing holes and pairs of peripheral beam passing holes on opposite sides of the central beam passing holes. The peripheral beam passing holes are intersected by planes of the recesses that are inclined relative to the electron beam passing direction.

REFERENCES:
patent: 3987329 (1976-10-01), Yamazaka et al.
patent: 4253041 (1981-02-01), Blacker et al.
patent: 4400649 (1983-08-01), Chen
patent: 4517488 (1985-05-01), Say
patent: 4622491 (1986-11-01), Izumida et al.
patent: 4626738 (1986-12-01), Gerlach
patent: 4686420 (1987-08-01), Kamohara
patent: 4736133 (1988-04-01), Barbin et al.
Hecht, "Optics", 1987, pp. 186-188, 220-229.

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