Color display tube system with reduced spot growth

Details Color display tube system with reduced spot growth Color display tube system with reduced spot growth

1990-10-01

1991-06-25

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

313412, H01J 2970, H01J 2976

Patent

active

050270427

ABSTRACT:
A color display tube system comprising an electron gun for producing three co-planar electron beams, and including a main deflection system which in operation generates deflection fields of the self-convergent type, and an auxiliary deflection system which in operation generates a 45.degree. magnetic 4-pole field facing the electron gun and moving the outer electron beams away from each other, and a 45.degree. magnetic 4-pole field facing the display screen and moving the outer beams towards each other.

REFERENCES:
patent: 4864195 (1989-09-01), Masterton

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