Method of manufacturing a static convergence unit, and a color d

Details Method of manufacturing a static convergence unit, and a color d Method of manufacturing a static convergence unit, and a color d

1977-10-07

1980-07-08

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315 13C, H01J 2970, H01J 2976

Patent

active

042119600

ABSTRACT:
The method according to the invention consists in the determination of data of the convergence errors of a color display tube, data being derived from the said determinations for determining the polarity and the intensity of magnetic poles of a structure. The structure thus obtained generates a static, permanent, multipole magnetic field adapted to the convergence errors occurring, so that the errors are connected.

REFERENCES:
patent: 4027219 (1977-05-01), Van Alphen et al.

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