Convergence coil assembly

Details Convergence coil assembly Convergence coil assembly

1996-05-23

1998-07-21

Patel, Nimeshkumar

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

335210, 335213, 445 3, 445 23, H01J 2970

Patent

active

057839026

ABSTRACT:
The improved convergence core assembly utilizes a separate carriage for the convergence core. This separate carriage properly aligns and holds the convergence core in relation to the convergence core assembly. In particular embodiments, the separate core carriage provides self centering and positional stability for the convergence core in the x-y plane, in the z-axis, and rotationally in the x-y plane. To accomplish this, the core carriage includes means for positioning the convergence core in the convergence core assembly. In certain embodiments, the means for positioning includes leaf springs and positioning tabs. The leaf springs tend to force the electromagnetic coil assembly against the stops of the positioning tabs to properly locate the convergence core in the z-axis. The positioning tabs also exert opposing spring forces on the convergence core to center the convergence core assembly in the x-y plane. Furthermore, at least one of the positioning tabs has an indexing protrusion to engage a positioning groove on the core of the convergence core assembly for rotational alignment of the convergence core.

REFERENCES:
patent: 3573525 (1971-04-01), Fuse et al.
patent: 5119056 (1992-06-01), Itoh et al.
patent: 5565732 (1996-10-01), Sluyterman et al.

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