Dual-coil type CRT image tilt correcting device

Details Dual-coil type CRT image tilt correcting device Dual-coil type CRT image tilt correcting device

1993-08-18

1995-12-12

O'Shea, Sandra L.

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

313431, 313413, 335213, 335299, H01J 2970

Patent

active

054752825

ABSTRACT:
A dual-coil type CRT image tilt correcting device which includes a first ring coil mounted on the CRT of a monitor in front of the biased yoke and charged to produce a magnetic field for tilt correction control without causing much color change, and a second ring coil mounted on the CRT adjacent to the magnetic ring of the biased yoke and charged to produce a magnetic field in the reversed direction to compensate with the magnetic field of the first ring coil on the convergence of the electron beam.

REFERENCES:
patent: 3573525 (1971-06-01), Fuse
patent: 4992697 (1991-02-01), Penninga et al.
patent: 5170094 (1992-12-01), Giannantonio et al.

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