Color CRT shielding cone having four metal plates extending from

Details Color CRT shielding cone having four metal plates extending from Color CRT shielding cone having four metal plates extending from

1978-10-20

1980-04-15

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

H01J 2907, H01J 3120

Patent

active

041985877

ABSTRACT:
A color display tube having a magnetic screening cap provided with four resilient metal plates extending radially in the direction of the corner points of the display screen at the edge of the end of the cap having the smallest diameter. The plates press against the electrically conductive inner coating of the cone and which would otherwise prevent electrons pass between the screening cap and the conductive inner coating of the cone from impinging upon the display screen.

REFERENCES:
patent: 4002941 (1977-01-01), Demmy

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