Deflection yoke for a picture tube of a projection color televis

Details Deflection yoke for a picture tube of a projection color televis Deflection yoke for a picture tube of a projection color televis

1982-06-25

1984-02-21

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

335210, 313421, 313426, H01F 500

Patent

active

044333188

ABSTRACT:
A deflection yoke for a picture tube of a projection color television receiver set has a solenoid-shaped auxiliary coil arranged adjacent to a core of the deflection yoke with a center axis of the auxiliary coil being aligned to a center axis of the deflection yoke. A vertical deflection current or a horizontal deflection current is supplied to the auxiliary coil. An electron beam is deflected by a magnetic field generated by the current of the auxiliary coil so that a raster formed on a face plate of the picture tube is deformed. The raster is deformed to such an extent that it has a correct shape when it is projected on a screen.

REFERENCES:
patent: 4088930 (1978-05-01), Barten
patent: 4238751 (1980-12-01), Shimoma
patent: 4310799 (1982-01-01), Hutchison et al.

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