公开(公告)号：US06465944B1

公开(公告)日：2002-10-15

申请号：US09849154

申请日：2001-05-04

申请人： David A. New

发明人： David A. New

IPC分类号： H01J2968

CPC分类号： H01J29/76 ,  H01J29/66 ,  H01J31/203 ,  H01J2229/703

摘要： In a cathode ray tube, an electron beam is directed towards a faceplate having an electrode biased at screen potential and is magnetically scanned across the faceplate to impinge upon phosphors thereon to produce light depicting an image. A six-pole coil is disposed proximate the deflection yoke and/or on the tube neck to modify the focus of the red, green and blue electron beams to control focus. An electrode between the tube neck and the faceplate is biased at or above screen potential to deflect electrons over a greater total angle than is obtained from the magnetic deflection.

摘要翻译： 在阴极射线管中，电子束指向具有偏置在屏幕电位的电极的面板，并且在面板上被磁扫描以撞击其上的荧光体以产生描绘图像的光。 六极线圈设置在偏转线圈和/或管颈附近，以改变红，绿和蓝电子束的焦点以控制焦点。 管颈和面板之间的电极被偏置在屏幕电位以上或更高处，以使电子偏转比从磁偏转得到的更大的总角度。