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147 条记录 (耗时 0.015 秒)

    Operationally rugged direct view storage tube
    1.
    发明授权
    Operationally rugged direct view storage tube 失效
    操作直接查看存储管

    公开(公告)号：US3794871A

    公开(公告)日：1974-02-26

    申请号：US3794871D

    申请日：1972-09-14

    申请人： HUGHES AIRCRAFT CO

    发明人： KODA N ,  EBERT J

    IPC分类号： H01J29/39 ,  H01J31/18 ,  H01J31/48

    CPC分类号： H01J29/395 ,  H01J31/18

    摘要： The present invention relates to an improved direct view storage tube having a non-storage mode of operation and incorporating an operationally rugged storage target with greatly improved retained image characteristics. This is generally achieved by using an overlay on the storage target having less resistance, a lower secondary emission ratio and a greatly enhanced bombardment induced conductivity effect compared to the characteristics of the storage target dielectric.

    摘要翻译： 本发明涉及一种改进的直视存储管，其具有非存储操作模式并且结合了具有大大改进的保留图像特性的操作上坚固的存储目标。 这通常通过使用与存储目标电介质的特性相比具有较小电阻，较低二次发射比和大大增强的轰击诱导电导效应的存储目标上的覆盖来实现。

    Storage tube having transmission target with low differential cutoff
    2.
    发明授权
    Storage tube having transmission target with low differential cutoff 失效
    具有低差异切换功能的传输目标存储管

    公开(公告)号：US3710179A

    公开(公告)日：1973-01-09

    申请号：US3710179D

    申请日：1971-09-14

    申请人： TEKTRONIX INC

    发明人： HAYES R ,  HAYWARD W

    IPC分类号： G09F9/313 ,  H01J31/18 ,  H01J29/41

    CPC分类号： H01J31/18

    摘要： A direct viewing charge image storage tube is described including a transmission type storage target having an extremely low differential cutoff of about 0.1 to 0.2 volt and faster writing speed of about 100 to 500 centimeters per microsecond. This is achieved by employing a thick storage dielectric on the mesh electrode of the target, providing a low electrical field adjacent the rear of the target and applying a positive preparation pulse to the target electrode during bombardment by the low velocity flood electrons until the potential of such dielectric is decreased to the cutoff voltage. The side portions of the dielectric surrounding each of the mesh openings continues to charge negatively after the front surface portion of the dielectric reaches the flood gun cathode potential so that the potential of each front surface portion decreases below such cathode potential until it reaches the cutoff voltage for the adjacent mesh opening before termination of the preparation pulse. The thick storage dielectric layer may be made of low density secondary emissive, such as magnesium oxide having a density of less than about 5 percent of its bulk density. While the storage tube can contain only one transmission storage target and phosphor viewing screen, it may also employ a second transmission storage target of thinner dielectric of higher density between the first target and such phosphor screen so that a charge image formed on the first target may be transferred to such second target for storage viewing and over a longer time.

    摘要翻译： 描述了直观观看电荷图像存储管，其包括具有约0.1至0.2伏的极低差分截止值和约100至500厘米每微秒的较快写入速度的透射型存储目标。 这通过在靶的网状电极上采用厚的存储电介质来实现，在靶的后部提供低电场，并且在由低速泛洪电子轰击期间将正准备脉冲施加到目标电极直到电位 这样的电介质降低到截止电压。 围绕每个网孔的电介质的侧部在电介质的前表面部分达到泛洪枪阴极电位之后继续负电，使得每个前表面部分的电位降低到低于该阴极电位直到达到截止电压 用于在制备脉冲终止之前的相邻网孔。 厚的存储电介质层可以由低密度二次发射体制成，例如密度小于其体积密度的约5％的氧化镁。 虽然存储管只能包含一个传输存储目标和荧光体观察屏幕，但是它也可以采用在第一目标和这种荧光屏之间具有更高密度的较薄电介质的第二传输存储目标，使得形成在第一目标上的电荷图像可以 被转移到这样的第二个目标进行存储查看和更长的时间。

    Apparatus controlling accumulated electron charging of a nonconductive medium
    3.
    发明授权
    Apparatus controlling accumulated electron charging of a nonconductive medium 失效
    控制非导电介质的累积电子充电的装置

    公开(公告)号：US3612936A

    公开(公告)日：1971-10-12

    申请号：US3612936D

    申请日：1970-01-02

    申请人： MINNESOTA MINING & MFG

    发明人： BERGLUND ROBERT S

    IPC分类号： H01J31/18 ,  H04N5/84 ,  G11B7/04 ,  G11C27/00 ,  H01J29/74

    CPC分类号： H04N5/84 ,  H01J31/18

    摘要： Apparatus comprising in combination a first electron generator including focusing and scanning means for deflecting a primary electron beam to produce a bombarded scan pattern on a nonconductive medium, and control means including a second electron generator for generating a second electron beam of low energy electrons directed along an electron axis that is nonintersecting with the medium. The control means also including deflecting means to afford electron flooding of the medium by the low energy electrons and thereby cause secondary emission of electron from the medium, collecting means for collecting the secondary emission electrons to afford control of the accumulated charge on the medium, and light shield and trapping means to prevent illumination of the medium by the second electron generator. In the first embodiment, the medium is photon emissive and the apparatus includes a photomultiplier. In the second embodiment, the medium is sensitive to the bombarding electrons for producing a pattern thereon.

    Direct-view storage tube having controlled write-through
    4.
    发明授权
    Direct-view storage tube having controlled write-through 失效
    具有控制写入的直接存储管

    公开(公告)号：US3566174A

    公开(公告)日：1971-02-23

    申请号：US3566174D

    申请日：1969-07-22

    申请人： FAIRCHILD CAMERA INSTR CO

    发明人： BURNS JOSEPH

    IPC分类号： H01J31/18 ,  H01J31/52 ,  H01J31/58 ,  H01J31/62

    CPC分类号： H01J31/18

    摘要： A flood gun control grid is placed between an electron gun and a backing electrode, and covers a given portion of the area of the backing electrode. This control grid is connected to control potentials sufficient to cutoff flood gun electrons. Write-gun electrons, having sufficiently high velocity, will not be cutoff by the flood control grid and will penetrate the grid and backing electrode to write directly on the portion of the viewing screen of the tube which is blocked by the flood-control grid.