Color cathode-ray tube

Details Color cathode-ray tube Color cathode-ray tube

1986-03-07

1987-10-20

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313408, H01J 2907

Patent

active

047016655

ABSTRACT:
In the shadow mask of a color cathode-ray tube, the array direction of in-line electron guns is parallel with the horizontal axis, and the radius of curvature along the horizontal axis of the plate portion of the shadow mask is so set as to be greater than that along the vertical axis thereof. The horizontal pitch of the apertures formed in the plate portion of the shadow mask is increased from the center region of the plate portion toward the periphery of the plate portion along the vertical axis.

REFERENCES:
patent: 3652895 (1972-03-01), Tsuneta et al.

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