Multi-beam electron beam scanner utilizing a modulation plate for modulating each of the beams independently
    1.
    发明授权
    Multi-beam electron beam scanner utilizing a modulation plate for modulating each of the beams independently 失效
    多波束电子束扫描仪利用调制板独立调制各个单独的

    公开(公告)号:US3678330A

    公开(公告)日:1972-07-18

    申请号:US3678330D

    申请日:1970-05-01

    Applicant: NORTHROP CORP

    Inventor: LANDRUM BOBBY L

    CPC classification number: G09G1/20 H01J29/467

    Abstract: A plurality of flat coded dynode members are sandwiched between an electron emitting cathode in the form of flat plate and a flat target plate. Each dynode member has a plurality of apertures formed therein which are aligned with corresponding apertures on all of the other dynodes, each such set of aligned apertures forming an electron beam channel. The dynodes also each have a pair of separate conductive finger patterns, the finest of such finger patterns defining an elemental scanning area of the target plate. The finger patterns and number of dynodes utilized are chosen so as to provide a predetermined number of simultaneous scanning beams. A modulation grid having apertures therein corresponding to the apertures on the dynode and having separate portions covering the areas encompassed by each of the scanning beams is placed between the cathode and target to control the energization of the beams.

    Abstract translation: 多个扁平编码倍增极部件夹在平板形式的电子发射阴极和平板靶板之间。 每个倍增器部件具有形成在其中的多个孔,其与所有其它倍增电极上的相应孔对准,每个这样的一组对齐的孔形成电子束通道。 倍增极还各自具有一对单独的导电指形图案,这些指状图案中最细的图案限定了目标板的基本扫描区域。 选择手指图案和所使用的倍增极数量以提供预定数量的同时扫描光束。 其中具有孔的调制栅格对应于倍增极上的孔,并且具有覆盖由每个扫描光束包围的区域的分开的部分,放置在阴极和靶之间以控制光束的通电。

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