Electric lamp and discharge devices – Cathode ray tube – Beam deflecting means
Patent
1988-03-01
1990-07-03
DeMeo, Palmer C.
Electric lamp and discharge devices
Cathode ray tube
Beam deflecting means
313160, 313414, 335211, H01J 2950, H01J 2956
Patent
active
049394142
ABSTRACT:
An improved picture sensitivity to the magnetic field produced by a field deflection coil (28) for an in-line gun shadow mask display tube is obtained by positioning magnetic field conducting elements (32, 34) within the envelope of the display tube in the central deflection area of the field produced by the field coil (28). By positioning the magnetic field conducting elements (32, 34) inside the envelope, the distances between the elements (32, 34) and the yoke ring (30) and between the elements (32, 34) and the field coil (28) are such that the unnecessary flux is significantly less compared to a known situation in which these elements are located between the line and field coils, thus improving the field deflection sensitivity.
REFERENCES:
patent: 2410054 (1946-10-01), Fremlin et al.
patent: 2411155 (1946-11-01), Gorn
patent: 3274418 (1966-09-01), Crumly
patent: 3505554 (1970-04-01), Vekshinsky et al.
patent: 3860850 (1975-01-01), Takenaka et al.
patent: 4105983 (1978-08-01), Barten et al.
patent: 4242612 (1980-12-01), Heijnemans et al.
patent: 4609847 (1986-09-01), Ashizaki et al.
patent: 4656390 (1987-04-01), Fukuda et al.
DeMeo Palmer C.
Faller Brice
Haken Jack E.
Kraus Robert J.
U.S. Philips Corporation
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