Deflection yoke with a core having a higher magnetic reluctance

Details Deflection yoke with a core having a higher magnetic reluctance Deflection yoke with a core having a higher magnetic reluctance

1995-08-29

1998-07-21

O'Shea, Sandra L.

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

313413, 313437, 313442, 335210, 335213, 335297, 335299, H01J 2970, H01J 2950, H01J 2946, H01H 100

Patent

active

057839018

ABSTRACT:
A deflection yoke for a cathode ray tube can correct both the pincushion distortion at the upper and lower edges of the screen and the misconvergence of the screen at the same time by the deflection yoke itself without the need for a correction magnet. The deflection yoke comprises a saddle shaped horizontal deflection coil, a saddle shaped vertical deflection coil located outside the horizontal deflection coil, and a high permeability core located outside the vertical deflection coil. The core has notch portions at the center parts of the upper and lower portions of the screen side end.

REFERENCES:
patent: 3891951 (1975-06-01), Talsma
patent: 3913042 (1975-10-01), Talsma
patent: 4229720 (1980-10-01), Heijnemans et al.
patent: 4233582 (1980-11-01), Abe et al.

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