Cathode-ray tube with electrostatic convergence means and magnet

Details Cathode-ray tube with electrostatic convergence means and magnet Cathode-ray tube with electrostatic convergence means and magnet

1987-12-24

1989-08-15

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

313431, 313433, 313437, 313439, H01J 2972, H01J 2951

Patent

active

048577960

ABSTRACT:
A cathode-ray tube which has an electron gun and a correcting unit with a magnetic device electrically coupled to a final electrode of the electron gun so as to selectively apply a uniform magnetic field to required ones of a plurality of electron beams, so as to thereby correct the path of a selected electron beam without causing distortion in the shape of the beam spot.

REFERENCES:
patent: 2849647 (1958-08-01), Francken
patent: 3462638 (1969-08-01), Tetsuo et al.
patent: 3898521 (1975-08-01), Saito et al.
patent: 4682073 (1987-07-01), Staub

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