Electron gun with stationary beam during blanking

Details Electron gun with stationary beam during blanking Electron gun with stationary beam during blanking

1979-03-23

1980-08-19

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Plural concentrating, accelerating, and/or de-accelerating...

315384, 313439, H01J 2970

Patent

active

042186358

ABSTRACT:
Shifting of the electron beam emitted from an electron gun is eliminated by placement of deflection electrodes between the electron gun anode and object electrode, whereby the electron beam, during blanking, is deflected away from the electron gun central axis and caused to totally impinge upon blanking and spray electrodes. For deflections less than the deflection required for total blanking, the electron beam is diminished in intensity but is not moved in position from the central gun axis.

REFERENCES:
patent: 3202864 (1965-08-01), Crowell
patent: 3562557 (1971-02-01), Gates

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