公开(公告)号：US3889144A

公开(公告)日：1975-06-10

申请号：US30872572

申请日：1972-11-22

Applicant: ELECTRON PHYSICS LTD

Inventor： MCGEE JAMES DWYER

IPC: H01J31/50 ,  H01J39/10 ,  H01J39/02

CPC classification number: H01J31/503

Abstract: An image intensifier tube comprising a phosphor screen and a photocathode is provided with a wire mesh adjacent the phosphor screen. This provides an equipotential surface and allows the main part of the focusing of electrons from the photocathode to be carried out in a relatively weak electric field. This leads to a reduction in the length of the tube.

Abstract translation: 包括荧光屏和光电阴极的图像增强管设置有与荧光屏相邻的丝网。 这提供了等电位表面，并允许来自光电阴极的电子的聚焦主要部分在相对较弱的电场中进行。 这导致管的长度的减小。

公开(公告)号：US3875440A

公开(公告)日：1975-04-01

申请号：US30872372

申请日：1972-11-22

Applicant: ELECTRON PHYSICS LTD

Inventor： MCGEE JAMES DWYER

IPC: H01J29/38 ,  H01J31/50 ,  H01J39/18 ,  H01J39/14

CPC classification number: H01J29/385 ,  H01J31/508

Abstract: A cascade image intensifier is provided with a mica sheet extending across the interior of the tube and sealed to it to separate electrically each stage. A phosphor screen of one stage is formed on one side of the mica sheet and a photocathode of the next stage is formed on the other side. The photocathode may be at a much lower potential than the phosphor screen on the other side of the sheet. This allows electrons to be accelerated in cascade without the use of very high voltages.

Abstract translation: 级联图像增强器设置有跨越管的内部延伸并被密封到其上的云母片，以在每个级上电隔离。 在云母片的一侧形成一级荧光屏，另一侧形成下一级的光电阴极。 光电阴极的电位可以低于片材另一面上的荧光屏。 这允许电子串联加速而不使用非常高的电压。