Color cathode-ray tube

Details Color cathode-ray tube Color cathode-ray tube

1991-03-14

1993-03-23

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

358245, 358246, 335214, H01J 2981

Patent

active

051967618

ABSTRACT:
In a shadow mask type color cathode-ray tube, the coercive force of the shadow mask frame, internal magnetic shield, shadow mask and reinforcing band is limited to a specific value when they are magnetized at specific magnetic field, in order to eliminate any adverse influences of environmental magnetic field.

REFERENCES:
patent: 4609412 (1986-09-01), Kamio et al.
patent: 4616154 (1986-10-01), Brouha et al.
patent: 4769089 (1988-09-01), Gray

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