Electron gun with a multi-element electron lens

Details Electron gun with a multi-element electron lens Electron gun with a multi-element electron lens

1974-11-29

1976-01-13

Segal, Robert

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

313414, H01T 2929, H01J 2982

Patent

active

039327868

ABSTRACT:
The disclosed apparatus is a multiple beam electron gun having a wide focusing lens gap. The lens gap has a plurality of metal elements, spaced therein, each successive element of which has a successively greater voltage applied to it. The application of the voltages creates an electrostatic field which focuses a plurality of beams generated by the gun.

REFERENCES:
patent: 2143390 (1939-01-01), Schroter
patent: 2859378 (1958-11-01), Gundert et al.

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