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    • 10. 发明授权
    • Image distortion correcting device
    • 图像失真校正装置
    • US06373360B1
    • 2002-04-16
    • US09702853
    • 2000-11-01
    • Yoshinori MiyamotoHironobu YasuiAkinori HeishiAkira IshimoriHiroaki Nishino
    • Yoshinori MiyamotoHironobu YasuiAkinori HeishiAkira IshimoriHiroaki Nishino
    • G06G104
    • H01J29/705H01J2229/5687
    • An image distortion correcting device with reduced cost and reduced consumption power is provided. Horizontal correction coils (L1) and (L2) are wound around partial cores (4a) and (4b). The two horizontal correction coils (L1) and (L2) are wound in such winding directions that they produce magnetic fields in opposite directions. A bobbin (5) having an insulating property covers the partial cores (4a) and (4b) and magnets (2) and (3) in the winding direction of the horizontal correction coils (L1) and (L2), and a vertical correction coil (L3) is wound on the bobbin (5) around the partial cores (4a) and (4b) along the windings of the horizontal correction coils (L1) and (L2). That is to say, the vertical correction coil (L3) is wound over the horizontal correction coils (L1) and (L2) along the periphery of their windings with the bobbin (5) interposed therebetween. This vertical correction coil (L3) is wound in such a direction that it produces a magnetic field directed to cancel the bias magnetic field produced by the magnets (2) and (3).
    • 提供了一种降低成本和降低功耗的图像失真校正装置。 水平校正线圈(L1)和(L2)缠绕在部分芯(4a)和(4b)上。 两个水平校正线圈(L1)和(L2)以这样的缠绕方向缠绕,使得它们产生相反方向的磁场。 具有绝缘性的线轴(5)在水平校正线圈(L1)和(L2)的卷绕方向上覆盖部分铁心(4a)和(4b)以及磁体(2)和(3) 绕线圈(L3)沿着水平校正线圈(L1)和(L2)的绕组围绕部分磁芯(4a)和(4b)卷绕在绕线筒(5)上。 也就是说,垂直校正线圈(L3)绕线圈(5)插入其绕组的周围,沿水平校正线圈(L1)和(L2)缠绕。 该垂直校正线圈(L3)以这样的方向缠绕,以产生用于抵消由磁体(2)和(3)产生的偏置磁场的磁场。