In-line electron guns having consecutive grids with aligned vert

Details In-line electron guns having consecutive grids with aligned vert In-line electron guns having consecutive grids with aligned vert

1974-10-04

1976-04-20

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313453, 313449, H01J 2951, H01J 2950, H01J 2956

Patent

active

039522245

ABSTRACT:
In the tube gun, the apertures of the two grids closest to the cathodes are vertically elongated or, preferably, vertically elliptically shaped to provide at least partial compensation for beam distortion occuring in a deflection zone of the tube.

REFERENCES:
patent: 3579010 (1971-05-01), Jones
patent: 3603839 (1971-09-01), Takayanagi
patent: 3772554 (1973-11-01), Hughes
B381,074, 01001975, Hasker et al. 313/414 X.

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