Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield
Patent
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.
Segal Robert
Tamoshunas Algy
U.S. Philips Corporation
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