Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield
Patent
1976-01-19
1978-01-24
Segal, Robert
Electric lamp and discharge devices
Cathode ray tube
Shadow mask, support or shield
313470, H01J 2930, H01J 3120
Patent
active
040705960
ABSTRACT:
A color cathode ray tube having color phosphor element strips spaced from each other by intervening light absorbing areas (black strips) which comprises an envelope; a faceplate; a phosphor screen formed on the inner wall of the faceplate; an electron gun unit so arranged in the neck portion of said cathode ray tube envelope as to emit in-line plural electron beams; and a slit-shaped aperture mask facing the faceplate, wherein the multicolor phosphor screen consists of a plurality of groups each consisting of several color phosphor element strips spaced from each other by a plurality of intervening light absorbing strips; and there is disposed adjacent to said color phosphor element strips a slit-shaped aperture mask perforated with a plurality of beam passing holes.
REFERENCES:
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patent: 2764628 (1956-09-01), Bambara
patent: 2842697 (1958-07-01), Bingley
patent: 2973454 (1961-02-01), Heil
patent: 3146368 (1964-08-01), Fiore et al.
patent: 3226229 (1965-12-01), Kaplan
patent: 3666462 (1972-05-01), Kaplan
patent: 3731129 (1973-05-01), Tsuneta et al.
patent: 3800176 (1974-03-01), Gross et al.
patent: 3889145 (1975-06-01), Suzuki et al.
Suzuki Takeshi
Tsuneta Asahide
Segal Robert
Tokyo Shibaura Electric Co. Ltd.
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