Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Patent
1990-07-19
1994-07-05
Blum, Theodore M.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Cathode-ray deflections circuits
H01J 2956
Patent
active
053270517
ABSTRACT:
A deflection apparatus includes a pair of quadrupole arrangements for producing a pair of quadrupole fields in a beam path of an electron beam at different distances from a display screen. In an embodiment of the invention, the first and second quadrupole arrangements and a main deflection field producing arrangement cooperate to converge three electron beams, R, G and B, with one another.
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Grote Michael D.
Johnson Jeffrey P.
Blum Theodore M.
Henig Sammy S.
Laks Joseph
RCA Thomson Licensing Corporation
Tripoli Joseph S.
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