Shadow mask support in a color cathode ray tube

Details Shadow mask support in a color cathode ray tube Shadow mask support in a color cathode ray tube

1979-03-08

1981-12-29

Demeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

H01J 2907

Patent

active

043084850

ABSTRACT:
A shadow-mask cathode ray tube for the visualization of colors, such as in television, where the peripheral edge of the mask is rigid with the frame fixed on the tube plate and is in contact with said frame only in areas spaced from each other. The frame is formed with bosses providing its contact in reduced cross-section areas spaced from each other with the edge of the mask.

REFERENCES:
patent: 3368098 (1968-02-01), Demmy
patent: 3585431 (1971-06-01), Long
patent: 3639799 (1972-02-01), Kirchner
patent: 3772555 (1973-11-01), McKee et al.

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