Cathode ray tube

Details Cathode ray tube Cathode ray tube

1997-04-25

1998-09-01

Patel, Ashok

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

335213, 335296, H01J 2970

Patent

active

058014810

ABSTRACT:
A deflection yoke is provided on the outer surface of a boundary region between a neck and a cone of a funnel of a vacuum envelope. The deflection yoke includes a separator having one end portion, smaller in diameter, and the other end portion, larger in diameter, and a deflecting coil is attached to the inner surface of the separator. The inner surface of the separator is shaped so that its one end portion is circular and its other end portion is substantially rectangular. A plurality of first and second hooks and channels defined between the hooks are arranged on the one and the other end portions, respectively, of the inner surface of the separator. A winding of the deflecting coil is wound around the first and second hooks so as to be fitted in the channels. Third hooks for preventing the winding from being lifted are located on those parts of the inner surface of the separator whose cross sections have a minimum radius of curvature.

REFERENCES:
patent: 3731129 (1973-05-01), Tsuneta et al.
patent: 5138290 (1992-08-01), Togane et al.
patent: 5453658 (1995-09-01), Nishino et al.
patent: 5519281 (1996-05-01), Jamar
patent: 5592045 (1997-01-01), Dossot et al.
patent: 5598055 (1997-01-01), Ioune et al.
patent: 5637955 (1997-06-01), Ji

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