公开(公告)号：EP1233439A4

公开(公告)日：2006-08-02

申请号：EP01947979

申请日：2001-07-11

申请人： MATSUSHITA ELECTRIC IND CO LTD

发明人： MATSUO KEIJI ,  MORIMOTO HIROJI ,  HAYASHI AKIRA

IPC分类号： H01J29/62 ,  H01J29/70 ,  H01J29/76

CPC分类号： H01J29/707 ,  H01J29/628 ,  H01J29/705 ,  H01J2229/4806 ,  H01J2229/5687

摘要： A cathode-ray tube comprising an electron gun (4) disposed in the neck portion (3) of a funnel (2), a deflection yoke (5) having a horizontal deflection coil (51) and a vertical deflection coil (52) mounted on the outer surface of the funnel (2) in a position closer to the front panel than the electron gun (4), and a speed modulation coil (6) mounted on the outer surface of the neck portion (3). The speed modulation coil (6) is so disposed that the end part thereof on the front panel side is closer to the electron gun (4) than the end part of the horizontal deflection coil (51) facing the electron gun (4) and closer to the front panel side the end part of the electron gun (4) facing the front panel. A desired speed modulation effect can be attained because the speed modulation magnetic field (28) of the speed modulation coil (6) does not interfere withe the deflection magnetic field and can be prevented from disappearing by causing by causing an eddy current in a top unit (27).

摘要翻译： 一种阴极射线管，它包括设置在漏斗（2）颈部（3）中的电子枪（4），安装有水平偏转线圈（51）和垂直偏转线圈（52）的偏转线圈（5） 在比电子枪（4）更靠近前面板的位置处的漏斗（2）的外表面上，以及安装在颈部（3）的外表面上的调速线圈（6）。 速度调制线圈（6）配置成其前端侧的端部比水平偏转线圈（51）的电子枪（4）侧的端部更接近电子枪（4），更靠近电子枪 将面对前面板的电子枪（4）的端部连接到前面板侧。 由于速度调制线圈（6）的速度调制磁场（28）不与偏转磁场干涉，并且可以通过在顶部单元中引起涡流而引起消失，所以可以获得期望的速度调制效果 （27）。