In-line gun system for a color picture tube

Details In-line gun system for a color picture tube In-line gun system for a color picture tube

1987-02-19

1989-06-27

Wieder, Kenneth

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313409, H01J 2956, H01J 2962

Patent

active

048432784

ABSTRACT:
In a color picture tube with an in-line gun system elliptic beam-spot distortion caused by the deflection field is compensated for by pairs of plates in at least one focus electrode. The plates project into the apertures for the electron beams and are located at a distance from the bottom of the focus electrode.

REFERENCES:
patent: 2898493 (1959-08-01), Burdick
patent: 4377767 (1983-03-01), Kornaker
patent: 4412149 (1983-10-01), Say
patent: 4517488 (1985-05-01), Say

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