Color cathode ray tube apparatus

Details Color cathode ray tube apparatus Color cathode ray tube apparatus

1991-10-15

1993-01-05

O'Shea, Sandra L.

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

H01J 2970

Patent

active

051773996

ABSTRACT:
Magnets for applying a pincushion type magnetic field to three electron beams emitted from an electron gun assembly is arranged between the deflection device and the lens unit of the electron gun assembly. The pincushion type stationary magnetic field produced by the magnets correct deflection aberrations of the electron beams due to the magnetic field of the deflection device and improves the focusing characteristics on the periphery of a screen.

REFERENCES:
patent: 4547707 (1985-10-01), Yabase
patent: 4659961 (1987-04-01), Naiki
patent: 4782264 (1988-11-01), Yamazaki et al.

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