Shadow mask type color cathode-ray tube

Details Shadow mask type color cathode-ray tube Shadow mask type color cathode-ray tube

1980-01-23

1983-01-04

Lieberman, Eli

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313402, H01J 2980

Patent

active

043674305

ABSTRACT:
A shadow mask type color cathode-ray tube has support springs and a shadow mask. The shadow mask has an aperture comprising a spherical part having many electron beam through-holes; a skirt part being substantially perpendicular to the spherical part; and a flange part extended from the skirt part to substantially parallel to the spherical part in one piece. The thickness of the skirt part and the flange part are thicker than that of the part having the electron beam through-holes. The shadow mask is supported by the support spring to absorb a shock or to decrease an amplitude in a resonance.

REFERENCES:
patent: 3581135 (1971-05-01), Garrett
patent: 3660708 (1972-04-01), Nakamura et al.
patent: 3754157 (1973-08-01), Yamazaki et al.
patent: 3855493 (1974-12-01), Snook et al.
patent: 3912963 (1975-10-01), Sedivy
patent: 3935036 (1976-01-01), Kinsch
patent: 4056755 (1977-11-01), Sohn

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