Device for adjusting the electron beams of a color-picture tube

Details Device for adjusting the electron beams of a color-picture tube Device for adjusting the electron beams of a color-picture tube

1980-12-31

1983-03-22

Dixon, Harold A.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313409, H01J 2950

Patent

active

043777678

ABSTRACT:
To adjust the convergence, raster and purity of an in-line color-picture tube, an oval magnetizable wire ring is mounted on the electron-gun system in such a way that its long axis lies in the plane of the electron beams. This arrangement permits both the conventional joint movement of the electron beams and movement of the beams independently of each other.

REFERENCES:
patent: 3268753 (1966-08-01), Hughes
patent: 3614502 (1971-10-01), Doggett
patent: 4119884 (1978-10-01), Bumenberg et al.

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