Color picture tube and aperture mask therefor

Details Color picture tube and aperture mask therefor Color picture tube and aperture mask therefor

1982-01-28

1983-06-21

Demeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

H01J 2907

Patent

active

043895921

ABSTRACT:
A television tube having an electron gun and an aperture mask with a plurality of line of sight openings in the aperture mask wherein the line of sight openings in the aperture mask are partially defined by material on the cone side surface of the aperture mask and partially defined by material on the grade side surface of the aperture mask with the aperture mask located in the television tube with the cone side of the aperture mask facing the electron guns.

REFERENCES:
patent: 2690518 (1954-09-01), Fyler et al.
patent: 3770434 (1973-11-01), Law
patent: 3787939 (1974-01-01), Tomita et al.
patent: 3809945 (1974-05-01), Roeder
patent: 3882347 (1975-05-01), Suzuki et al.
patent: 3883770 (1975-05-01), Yamada et al.
patent: 3916243 (1975-10-01), Brown

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