Convergence means for color cathode ray tube

Details Convergence means for color cathode ray tube Convergence means for color cathode ray tube

1976-08-25

1978-05-16

Wilbur, Maynard R.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315 13C, H01J 2970, H01J 2976

Patent

active

040901106

ABSTRACT:
The beam forming means and static convergence correcting means in a color cathode ray tube are arranged to provide for proper convergence of the beams at regions remote from the center of the screen and closer to the corners. The resulting misconvergence at the center of the screen is then corrected by dynamic convergence correcting means which produces less beam distortion then if it had to correct misconvergence at the corners.

REFERENCES:
patent: 3840771 (1974-10-01), Morio et al.
patent: 3902100 (1975-08-01), Nakagawa et al.

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