Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield
Patent
1977-06-24
1979-11-06
Segal, Robert
Electric lamp and discharge devices
Cathode ray tube
Shadow mask, support or shield
313408, H01J 2907
Patent
active
041737296
ABSTRACT:
The tube includes an improved shadow mask contoured with step risers therein separating active portions of the mask. The risers are aligned with electron beam paths within the tube.
REFERENCES:
patent: 3363129 (1968-01-01), De France et al.
patent: 3923566 (1975-12-01), Law
patent: 3944867 (1976-03-01), Kaplan
Morrell Albert M.
Stone Robert P.
Bruestle Glenn H.
Irlbeck Dennis H.
RCA Corporation
Segal Robert
Whitacre Eugene M.
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