Dual beam CRT with inner gun and outer gun shield means for corr

Details Dual beam CRT with inner gun and outer gun shield means for corr Dual beam CRT with inner gun and outer gun shield means for corr

1975-10-24

1976-09-28

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313437, H01J 2951, H01J 2982

Patent

active

039834441

ABSTRACT:
A dual-beam cathode-ray tube having a pair of electron guns and associated deflection means disposed side-by-side on each side of a central axis is described in which the electron guns are parallel and the deflection means includes beam centering plates and angled horizontal deflection plates to direct the electron beams toward the central axis, precluding the need for a large-diameter tube neck in which the entire gun structures are angled. Bowing control plates are disposed adjacent the beam centering plates to minimize trace bowing, and an intergun shield is disposed between the horizontal deflection plates to control and correct display pattern geometry distortion.

REFERENCES:
patent: 3358172 (1967-12-01), Lewis
patent: 3670199 (1972-06-01), Hawes
patent: 3819984 (1974-06-01), Hawken

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