Electromagnetic deflection-distortion corrector

Details Electromagnetic deflection-distortion corrector Electromagnetic deflection-distortion corrector

1985-12-06

1987-12-22

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

335210, H01F 100

Patent

active

047149086

ABSTRACT:
An electromagnetic deflection-distortion corrector comprises a plurality of permanent magnets arranged around the tubular wall of a CRT display unit of the electromagnetic deflection type, and adjuster means for moving each permanent magnet forward and backward, toward and away from the CRT wall, while at the same time rotating the direction of its magnetization.

REFERENCES:
patent: 2883569 (1959-04-01), Kaiser et al.
patent: 2899579 (1959-08-01), Kirkham et al.
patent: 3247426 (1966-04-01), Havn
patent: 3781731 (1973-12-01), Poel
patent: 4197487 (1980-04-01), Takenaka et al.
patent: 4253078 (1981-02-01), Tagawa et al.

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