公开(公告)号：US5396145A

公开(公告)日：1995-03-07

申请号：US985957

申请日：1992-12-04

申请人： Kenji Shiohara ,  Masaaki Asai ,  Shunji Suzuki ,  Kiyoyasu Kuwayama

发明人： Kenji Shiohara ,  Masaaki Asai ,  Shunji Suzuki ,  Kiyoyasu Kuwayama

IPC分类号： H01J29/07 ,  H01J29/81

CPC分类号： H01J29/07 ,  H01J2229/0727 ,  H01J2229/0761

摘要： The present invention provides an aperture grill capable of securing uniformity in the width of end slits among slits formed in an effective area of the picture of the flat grill plate of an aperture grill for a CAT or the like. In an aperture grill formed by joining the periphery of a flat aperture grill of a thin metal sheet provided with a plurality of slits to a frame, extra slits having a width smaller than that of the plurality of slits and capable of screening are formed in the flat aperture grill at positions outside the end slits among the plurality of slits at the opposite ends of the effective area of picture.

摘要翻译： 本发明提供一种孔格栅，其能够确保在用于CAT等的孔格栅的平板格栅的图像的有效区域中形成的狭缝之间的端部狭缝的宽度的均匀性。 在通过将设置有多个狭缝的薄金属片的扁平孔格栅的周边连接到框架而形成的孔格栅中，形成了宽度小于多个狭缝的宽度并能够筛选的多个狭缝， 在有效区域的相对端处的多个狭缝中的端部狭缝外侧的位置处的平坦孔格栅。