Magnet assembly for correcting CRT misconvergence

Abstract

A convergence correcting magnet assembly means for adjusting the position of plural correcting magnets closer to or further from electron beams in a cathode ray tube, preferably comprising four bipolar magnets arranged in two offset pairs, one pair oriented in the lateral direction and a second pair in the longitudinal direction; the pairs of magnets permit laterally and longitudinally deviating beams to be adjusted or converged toward the center beam. Preferably, each of the bipolar magnets is installed in a clearance space having a spring-loaded or elastic member and an adjusting member, so that the intensities of each magnet can be adjusted by individually moving each magnet closer to or further from the beams under spring tension. Interactions between the magnets are minimized by isolating the magnets from one another.

Dependencies are inferred from the claim text.