Cathode ray tube with magnetic pole pieces which support a ring

Details Cathode ray tube with magnetic pole pieces which support a ring Cathode ray tube with magnetic pole pieces which support a ring

1983-12-22

1986-09-02

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313431, 313481, H01J 2970, H01J 2976, H01J 2994

Patent

active

046098470

ABSTRACT:
In a deflection means 11 having a field of pin-cushion type flux distribution, at least a pair of T-shaped magnetic pole pieces 9, 10 are disposed between the front end of an electron gun 2 and the center part of the deflection means 11, thereby to form a barrel type flux distribution, to attain high resolution even at peripheral part of the fluorescent screen.

REFERENCES:
patent: 3244418 (1966-09-01), Crumly
patent: 3334258 (1967-08-01), Kaplan et al.
patent: 4057747 (1977-11-01), Hamano

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