公开(公告)号：US5994824A

公开(公告)日：1999-11-30

申请号：US899725

申请日：1997-07-24

Applicant: Nils I. Thomas ,  James W. Harris ,  Walter E. Blouch ,  Warren D. Vrescak ,  George A. Hambro ,  Mark L. Oyler ,  Stanley J. Clower ,  Nelson C. Devoe ,  Robert A. Gallagher

Inventor： Nils I. Thomas ,  James W. Harris ,  Walter E. Blouch ,  Warren D. Vrescak ,  George A. Hambro ,  Mark L. Oyler ,  Stanley J. Clower ,  Nelson C. Devoe ,  Robert A. Gallagher

IPC: H01J9/36 ,  H01J31/50 ,  H01J43/00

CPC classification number: H01J31/507 ,  H01J9/36

Abstract: An improved image intensifier tube having electrically operative components that include a photocathode having a photoemissive layer, a microchannel plate having a conductive input surface and a conductive output surface, and a vacuum housing for retaining the photocathode, the microchannel plate and a fiber optic inverter in a predetermined arrangement within an evacuated environment, the fiber optic inverter having a phosphor screen for receiving the electrons emitted by the cathode and converting the electrons into a visual image, the improvement therewith comprising a ring assembly disposed in the housing comprising first and second rings, the first ring being a metallized snap ring conductively contacting the input surface of the microchannel plate for providing electrical contact to and retaining the plate within the housing, the second ring being a metallized ceramic ring having a first chamfered metallized surface in electrical contact with the metallized snap ring and a second metallized surface operable to provide an electrical contact external to the housing; and the fiber optic inverter having a unitarily formed and circumferentially extending flange portion extending toward the housing, wherein a sealing material sealingly engages an inner surface of an output flange with the inverter flange portion to form an air impervious vacuum seal, the output flange supported by the inverter flange portion.

Abstract translation: 一种改进的图像增强管，其具有电气操作部件，其包括具有发光层的光电阴极，具有导电输入表面的微通道板和导电输出表面，以及用于将光电阴极，微通道板和光纤逆变器保持在其中的真空壳体 在抽真空环境中的预定布置，光纤逆变器具有用于接收由阴极发射的电子并将电子转换成视觉图像的荧光屏，其改进包括设置在壳体中的环组件，包括第一和第二环， 所述第一环是金属化卡环，其导电地接触所述微通道板的输入表面，以提供与所述壳体内的电接触并将所述板保持在所述壳体内，所述第二环是金属化陶瓷环，其具有与所述金属化的电化学电接触的第一倒角金属化表面 卡环和一秒钟 金属化表面可操作以在壳体外部提供电接触; 并且所述光纤逆变器具有朝向所述壳体延伸的一体形成的周向延伸的凸缘部分，其中密封材料与所述逆变器凸缘部分密封地接合输出凸缘的内表面以形成不透气的真空密封件，所述输出凸缘由 变频器法兰部分。