Cathode ray tube shadow mask with slotted apertures

Details Cathode ray tube shadow mask with slotted apertures Cathode ray tube shadow mask with slotted apertures

1976-11-22

1978-11-28

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

H01J 2907

Patent

active

041277910

ABSTRACT:
A cathode ray tube for displaying colored pictures of the shadow mask type. The shadow mask has rows of elongate apertures separated by bridges. By causing the vertical pitch, that is the distance between the centers of two successive apertures in a row, to vary in a given manner, substantially no irregularities in the applied phosphor lines occur any longer during the manufacture of the display screen.

REFERENCES:
patent: 3652895 (1972-03-01), Tsuneta et al.
patent: 3663854 (1972-05-01), Tsuneta et al.

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