Cathode-ray tube having an improved shadow mask contour

Details Cathode-ray tube having an improved shadow mask contour Cathode-ray tube having an improved shadow mask contour

1983-02-25

1989-06-13

Moore, David K.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313402, 313477R, 220 21A, H01J 2910, H01J 2986

Patent

active

048395560

ABSTRACT:
A cathode-ray tube includes a shadow mask mounted therein. The mask has curvatures along its major and minor axes. The curvature along the major axis is greater at the sides of the mask than at the center of the mask.

REFERENCES:
patent: Re27259 (1971-12-01), Rublack
patent: 3109116 (1963-10-01), Epstein et al.
patent: 3435268 (1969-03-01), Rublack
patent: 3931906 (1976-01-01), Bradu
patent: 4056755 (1977-11-01), Sohn
patent: 4072876 (1978-02-01), Morrell
patent: 4136300 (1979-01-01), Morrell
patent: 4197482 (1980-04-01), Koorneef et al.
patent: 4280077 (1981-07-01), Villanyi

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