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    • 36. 发明公开
    • Deflection yoke without north-south magnets
    • Ablenkjoch ohne nord-südMagneten
    • EP0689223A1
    • 1995-12-27
    • EP94401391.1
    • 1994-06-22
    • THOMSON TUBES & DISPLAYS S.A.
    • Azzi, NacerdineMasson, Olivier
    • H01J29/76
    • H01J29/762H01J2229/862
    • A deflection yoke for a cathode ray tube having a large, flat faceplate and a 4:3 aspect ratio includes a saddle-shaped vertical deflection coil. Most of the winding turns at a rear end portion are concentrated close to the beam entrance end of the coil. Both the position of the peak and the vertical deflection center of the vertical deflection field are shifted toward the gun entrance end with respect to the corresponding peak and deflection center of the horizontal deflection field. Consequently, North-South magnets are not required for reducing North-South pincushion distortion. Also, a much shortened yoke is obtained than if the peak were not shifted.
    • 具有大平面板和4:3纵横比的用于阴极射线管的偏转线圈包括鞍形垂直偏转线圈。 后端部分的大部分绕组匝集中在线圈的入射端。 垂直偏转场的峰值和垂直偏转中心的位置都相对于水平偏转场的对应的峰值和偏转中心朝向枪入口端移动。 因此,不需要南北磁体来减少南北枕形失真。 而且,如果峰没有偏移,则获得了大大缩短的磁轭。
    • 38. 发明公开
    • Focusing device with two dynamic windings for energy recovery
    • Fokussiereinrichtung mit zwei dynamischen Erregerspulen zurEnergierückgewinnung。
    • EP0551026A1
    • 1993-07-14
    • EP92400068.0
    • 1992-01-10
    • THOMSON TUBES & DISPLAYS S.A.
    • Perreaut, Jean Marc
    • H01J29/66H04N3/26
    • H04N3/26H01J29/66
    • An electron beam focusing device with two dynamic windings is provided for apparatus such as cathode ray tubes . The focusing device (12) includes a static field generator (10) and two (13),(14) coupled coils windings mounted axially adjacent or overlapped along the beam axis. The static field generator can be a permanent magnet and the first and second windings can be superimposed at the axial center of the static field of the magnet. Alternatively, the static field generator can have a winding in a magnetically permeable shield structure (11) with a gap (22) for concentrating the static field at an axial end of the focusing device, the first and second windings being superimposed on one another adjacent the gap and outside the shield.
    • 具有两个动态绕组的电子束聚焦装置用于诸如阴极射线管的装置。 聚焦装置(12)包括静电场发生器(10)和沿轴线轴向相邻或重叠安装的两个(13),(14)耦合的线圈绕组。 静电场发生器可以是永磁体,并且第一和第二绕组可以叠加在磁体的静态磁场的轴心处。 或者,静电场发生器可以具有在具有间隙(22)的导磁屏蔽结构(11)中的绕组,用于将静态场集中在聚焦装置的轴向端部处,第一和第二绕组彼此相邻地相邻 间隙和外面的盾牌。