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    Electron tube for the detection, memorizing and selection of light images
    1.
    发明授权
    Electron tube for the detection, memorizing and selection of light images 失效
    电子管用于检测，记忆和选择光图像

    公开(公告)号：US4948952A

    公开(公告)日：1990-08-14

    申请号：US342281

    申请日：1989-04-24

    申请人： Lucien Guyot

    发明人： Lucien Guyot

    IPC分类号： G01T1/20 ,  G01T1/28 ,  G01T5/12 ,  H01J31/50 ,  H01J31/52

    CPC分类号： H01J31/52 ,  G01T1/28

    摘要： The disclosure concerns the observations of very fast light phenomena. It is desired to temporarily store a series of images arriving at a fast rate (one every 10 nanoseconds) for a duration (one microsecond) that gives enough time receive an order of selection of an image which is worthwile for analysis. The other images, which had been stored solely in case one of them might be interesting, are eliminated as and when they are not selected. An electron tube is used for the conversion of light images into packets of electrons. Each packet represents an image. The packets move in the tube from one end to the other, behind one another. The method and device disclosed make use of the property that these packets of electrons have, of moving far more slowly than light if the electrical fields in the tube are weak. It is therefore possible to temporarily store a large number of images in the form of these packets of electrons travelling in the tube for a duration which may be one microsecond. At the end of the trip, a selection grid enables a desired image to be selected and sent to the output face of the tube.

    摘要翻译： 该公开涉及非常快速的光现象的观察。 期望临时存储以快速速率（每10纳秒一次）到达的持续时间（1微秒）的一系列图像，其给予足够的时间接收对于分析是值得的图像的选择顺序。 只有在其中一个可能存在的情况下，其他图像才能被有效地被保存，并且当它们未被选择时被消除。 电子管用于将光图像转换成电子包。 每个分组表示图像。 包中的包从一端到另一端移动到彼此之间。 所公开的方法和装置利用这些电子分组的特性，如果管中的电场较弱，其移动比光更慢。 因此，可以以这种在电子管中行进的电子包的形式临时存储大量图像，持续时间可能是1微秒。 在行程结束时，选择网格使得能够选择期望的图像并将其发送到管的输出面。

    Vacuum tubes
    7.
    发明授权
    Vacuum tubes 失效
    真空管

    公开(公告)号：US3555346A

    公开(公告)日：1971-01-12

    申请号：US3555346D

    申请日：1968-02-05

    申请人： NAT RES DEV

    发明人： MCGEE JAMES DWYER ,  SMITH ROBIN WYNCLIFFE

    IPC分类号： H01J31/52 ,  H01J29/46

    CPC分类号： H01J31/52

    摘要： An improvement is made in a known vacuum tube arrangement in which information is stored as a modulated electron stream traveling to and fro through a drift region between reflecting meshes, information retrieval being accomplished by gating pulses applied to one mesh to allow electrons to pass through it. Analysis of the gating mechanism shows that satisfactory highspeed operation requires a short electron transit time through the decelerating field associated with the gating mesh. One practical means of achieving this involves the provision of a high potential electrode between the drift region and the gating mesh.