Deflection yoke

Details Deflection yoke Deflection yoke

1981-06-04

1983-05-31

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

335213, H01F 312

Patent

active

043863310

ABSTRACT:
The deflection yoke for use in the in-line type color cathode-ray tube comprises a horizontal deflection yoke, vertical deflection yoke and core, and the vertical deflection coil is an or/and auxiliary magnetic field correcting means which generates the vertical deflection magnetic field of the screen side in the form of a pincushion. A set of correction members made of mild magnetic material consisting of circular lugs which extend in the circumferential direction of the neck of the cathode-ray tube and center lugs which extend in the direction of the tube axis are provided at the north and south positions between the horizontal deflection coil at the electron gun side of the deflection yoke and the vertical deflection coil to simultaneously correct misconvergence in the horizontal and vertical directions at the corners of the fluorescent screen.

REFERENCES:
patent: 3899761 (1975-08-01), Yamauchi
patent: 4246560 (1981-01-01), Shimizu et al.

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