CATHODE RAY TUBE OF TRILL-LEMMA VARIABLE APPARATUS

摘要

The present invention relates to a trellis variable device of a cathode ray tube, in which a magnetic piece wound with a correction coil is formed on a bobbin and mounted outside the electron gun insertion hole of a deflection yoke to deflect the R (Red) beam and the B (Blue) beam. By adjusting the beam spacing before entering the laser beam, the trilemma can be adjusted to optimal conditions.