公开(公告)号：US3693005A

公开(公告)日：1972-09-19

申请号：US3693005D

申请日：1971-02-16

Applicant: PHILIPS CORP

Inventor： CLEMENT GERARD

IPC: H01J31/50 ,  H01J43/24 ,  H01J43/02

CPC classification number: H01J43/246 ,  H01J31/506

Abstract: A secondary emissive electrode for image intensifiers, cathoderay tubes and the like which comprises a plate of insulating material having two substantially parallel boundary surfaces on opposite sides thereof pierced by channels, the walls of which are secondary emissive, forming a high-density network of channels between two surfaces. The periphery of this plate has at least two regions one opposite the other relative to the center of the body with channels which are filled with a core material. In the manufacture of such an electrode, all channels are initially filled with a material which can be etched away by an acid. Those channels in the regions of the periphery are covered with a coating which is etch resistant, and the core material in the remaining channels etched away after which the coating is removed.

Abstract translation: 用于图像增强器，阴极射线管等的二次发射电极，其包括绝缘材料板，该绝缘材料板在其相对侧上具有两个基本平行的边界表面，其通道被穿透，其壁是二次发射的，形成高密度网络 的两个表面之间的通道。 该板的周边具有相对于主体的中心相对的至少两个区域，其中填充有芯材料的通道。