Deflection yoke

Details Deflection yoke Deflection yoke

1996-12-24

1998-10-06

Gellner, Michael L.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

335211, H01F 100

Patent

active

058183175

ABSTRACT:
A deflection yoke having upper and lower magnets located at upper and lower positions of the funnel side of a cathode-ray-tube, for correcting upper and lower pin-cushion distortions. The upper and lower magnets are movably held so as to make magnetic fields formed by the magnets variable horizontally or vertically and asymmetrically. Accordingly, asymmetrical image distortion both in a vertical direction and a horizontal direction can be easily corrected.

REFERENCES:
patent: 3106658 (1963-10-01), Chandler et al.
patent: 3296570 (1967-01-01), Uetake et al.
patent: 3618125 (1971-11-01), Yabase
patent: 4197487 (1980-04-01), Takenaka et al.
patent: 4398166 (1983-08-01), Bumgardner
patent: 4449109 (1984-05-01), Paddock et al.
patent: 4714908 (1987-12-01), Watabe et al.
patent: 5227692 (1993-07-01), Lee

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