Color picture tube having an improved internal magnetic shield

Details Color picture tube having an improved internal magnetic shield Color picture tube having an improved internal magnetic shield

1990-11-23

1992-03-17

O'Shea, Sandra L.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313407, H01J 2906

Patent

active

050971743

ABSTRACT:
An internal magnetic shield for a color picture tube has lower reluctance in the sides of the shield than the top and bottom of the shield.

REFERENCES:
patent: 3867668 (1975-02-01), Shrader
patent: 4019085 (1977-04-01), Sakata
patent: 4229675 (1980-10-01), Matsuki et al.
patent: 4580076 (1986-04-01), Shimoma et al.
patent: 4622490 (1986-11-01), Benway
patent: 4758193 (1988-07-01), Brown

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