Color display system

Details Color display system Color display system

1986-06-26

1988-09-20

Blum, Thodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315368, 315371, 313412, H01J 2958

Patent

active

047728264

ABSTRACT:
A color display system includes a cathode-ray tube and yoke. The yoke is a non-converging type. The cathode-ray tube has an electron gun for generating and directing three electron beams, a center beam and two outer beams, along paths toward a screen of the tube. The electron gun includes electrodes that comprise a beam-forming region and electrodes that form a main focusing lens. The main focusing lens is formed by at least two focusing electrodes. The focusing electrode closest to the beam-forming region includes at least two spaced parts. Each spaced part forms a portion of a dipole lens structure in the path of an outer electron beam. Means are provided for applying to at least one of the spaced parts a dynamic signal which is related to the deflection of the electron beams.

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