Cathode ray tube with color selecting grill

Details Cathode ray tube with color selecting grill Cathode ray tube with color selecting grill

1982-05-07

1985-03-12

Demeo, Palmer

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313269, 313407, 248559, H01J 2907, H01J 153, F16M 1300

Patent

active

045047642

ABSTRACT:
A cathode ray tube having a phosphor layer formed on an inner surface of a panel of an envelope, a color selecting aperture grill formed of a number of grid elements and located within the envelope opposing to the phosphor layer, a metal wire for coupling the number of the grid elements, an electron gun located within the envelope and a deflecting device located around the envelope is disclosed, in which the resonance frequency of at least one grid element of the color selecting grid is selected different from that of another grid element in the vicinity thereof.

REFERENCES:
patent: 2722623 (1955-11-01), Law
patent: 2930918 (1960-03-01), Coffin, Jr.
patent: 3638063 (1972-01-01), Tachikawa et al.
patent: 4291253 (1981-09-01), Ohkoshi et al.

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