公开(公告)号：US20010007409A1

公开(公告)日：2001-07-12

申请号：US09756914

申请日：2001-01-10

申请人： Sony Corporation

发明人： Yuuichi Suzuki ,  Hirotsugu Ishihara ,  Makoto Baba

IPC分类号： H01J029/70 ,  H01J029/46

CPC分类号： H01J29/02 ,  H01J29/503 ,  H01J2229/4844

摘要： A cathode-ray tube according to the present invention is able to automatically correct a color shading caused due to a repulsion effect and the like, which occurs between electron beams. An electron gun for use with the cathode-ray tube according to the present invention includes beam apertures bored through a first electrode opposing a cathode disposed in an inline fashion. Further, beam apertures through which so-called side beams pass are bored with a predetermined inclination relative to the opposing cathodes. Consequently, an electron lens formed between the cathode and the first electrode becomes an axial asymmetric electron lens. A curvature of this electron lens is changed in response to a drive voltage of the cathode. When this curvature is changed, trajectories of electron beams are changed to cancel an influence caused by a repulsion effect. Thus, a color shading can be corrected automatically.

摘要翻译： 根据本发明的阴极射线管能够自动校正由电子束之间发生的排斥作用等引起的着色。 与根据本发明的阴极射线管一起使用的电子枪包括穿过与以排列方式设置的阴极相对的第一电极钻孔的光束孔。 此外，所谓的侧光束通过的光束孔相对于相对的阴极以预定的倾斜度钻孔。 因此，形成在阴极和第一电极之间的电子透镜成为轴向不对称电子透镜。 该电子透镜的曲率根据阴极的驱动电压而变化。 当该曲率改变时，改变电子束的轨迹以消除由排斥效应引起的影响。 因此，可以自动校正颜色阴影。