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159 条记录 (耗时 0.022 秒)

    CRT display apparatus
    1.
    发明申请
    CRT display apparatus 失效

    公开(公告)号：US20020047667A1

    公开(公告)日：2002-04-25

    申请号：US09758224

    申请日：2001-01-12

    发明人： Hironobu Yasui ,  Akinori Heishi

    IPC分类号： G09G001/04 ,  H01J029/58

    CPC分类号： H01J29/98 ,  H01J29/52

    摘要： A CRT display apparatus including a CRT having an electron gun is disclosed. The electron gun includes a cathode, and a G1 electrode, a G2 electrode and a G3 electrode disposed in that order for drawing electrons from the cathode. The electron gun further includes a modulating electrode disposed between the G2 electrode and the G3 electrode. The CRT display apparatus is provided with a controller for controlling a value of a voltage applied to the modulating electrode in order to suppress or interrupt an electron beam flowing from the cathode to a screen of the CRT.

    Cathode ray tube
    2.
    发明授权
    Cathode ray tube 失效
    阴极射线管

    公开(公告)号：US4871949A

    公开(公告)日：1989-10-03

    申请号：US227466

    申请日：1988-08-02

    申请人： Albert Abramson

    发明人： Albert Abramson

    IPC分类号： H01J29/52

    CPC分类号： H01J29/52 ,  H01J2229/507

    摘要： A cathode ray tube is disclosed which has a modulating grid for varying the charged particle flux density along a cross-section of a flat thin of charged particles or for varying the charged particle flux density in each of a plurality of charged particle beams arranged side-by-side in a sheaf. In a preferred embodiment, a cathode ray tube according to the invention includes a modulating grid and associated electronics that permit the tube to project a single line of video information simultaneously, thus increasing picture brightness. The beam scan is solely vertical, rather than horizontal and vertical, as in cathode ray tubes of the prior art.

    摘要翻译： 公开了一种阴极射线管，其具有用于根据带电粒子的平坦薄片的横截面改变带电粒子通量密度的调制栅格或用于改变布置在多个带电粒子束中的多个带电粒子束中的每一个中的带电粒子通量密度， 并排在捆。 在优选实施例中，根据本发明的阴极射线管包括调制栅格和相关联的电子器件，其允许管同时投射单行视频信息，从而增加图像亮度。 光束扫描仅是垂直的，而不是水平和垂直的，如现有技术的阴极射线管。

    Vidicon type camera tube
    3.
    发明授权
    Vidicon type camera tube 失效
    Vidicon型相机管

    公开(公告)号：US4363996A

    公开(公告)日：1982-12-14

    申请号：US215335

    申请日：1980-12-11

    申请人： Masashi Mizushima ,  Masanori Maruyama ,  Shigeru Ehata ,  Masakazu Fukushima

    发明人： Masashi Mizushima ,  Masanori Maruyama ,  Shigeru Ehata ,  Masakazu Fukushima

    IPC分类号： H01J29/48 ,  H01J29/52 ,  H01J29/46 ,  H01J29/56 ,  H01J31/38

    CPC分类号： H01J29/48 ,  H01J29/488 ,  H01J29/52

    摘要： A vidicon type camera tube comprising a beam current control section including a thermionic cathode, a first grid having an aperture of diameter d.sub.1, a second grid having an aperture of diameter d.sub.2 and a beam disc having a diaphragm of diameter d.sub.3 disposed at a distance of l along the tube axis from the second grid. The tube further comprises a main lens section constituted of cylindrical electrodes. The diameters d.sub.1, d.sub.2 and d.sub.3 and the distance l are so determined that the value of (d.sub.2 /l)(d.sub.3 /d.sub.1).sup.2 may lie in the range where the difference of the effective cathode loading is positive.

    摘要翻译： 一种视频摄像机管，其包括具有热离子阴极的射束电流控制部分，具有直径为d1的孔径的第一格栅，具有直径为d2的孔径的第二格栅和具有设置在距离为 l沿着管轴从第二格。 该管还包括由圆柱形电极构成的主透镜部分。 直径d1，d2和d3以及距离l被确定为（d2 / 1）（d3 / d1）2的值可以在有效阴极负载的差为正的范围内。

    Method of controlling the intensity of an electron beam
    4.
    发明授权
    Method of controlling the intensity of an electron beam 失效
    控制电子束强度的方法

    公开(公告)号：US3621327A

    公开(公告)日：1971-11-16

    申请号：US3621327D

    申请日：1969-12-29

    申请人： FORD MOTOR CO

    发明人： HASHMI ZIA

    IPC分类号： H01J29/52 ,  H01J33/00 ,  H01J29/56

    CPC分类号： H01J33/00 ,  H01J29/52

    摘要： A method for controlling the cross-sectional area and intensity of an electron beam produced in an electron accelerator. A first constant electric field is applied to the beam causing dispersal of the beam in a first plane and concentration of the beam in a second plane disposed perpendicular to the first plane. Subsequently, a second constant electric field is applied to the beam causing beam concentration in the first plane and beam dispersal in the second plane. The fields are applied to the beam between the origin of the beam and the accelerator window and provide that the cross-sectional area of the beam greatly is enlarged at the point of intersection of the beam and the window relative to its original dimensions.