| 摘要 |
A magnetic material to be located adjacent a neck portion of a cathode ray tube includes magnetized regions for producing an electron beam moving magnetic field for moving at least one electron beam within the cathode ray tube in a predetermined manner. A method for creating these magnetized regions comprises the steps of developing an appropriate magnetizing field that will magnetize magnetic domains within the magnetic material for creating the magnetized regions, and eliminating from the electron beam moving magnetic field a component contributed by relatively easily demagnetizable magnetic domains within the magnetized regions. The magnetized regions are thereby stabilized against the occurrence of significant changes in the values of the electron beam moving magnetic field. |
