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    Electron lens system for deflection amplification in a cathode-ray tube
    91.
    发明公开
    Electron lens system for deflection amplification in a cathode-ray tube 失效
    ElektronenlinsensystemfürdieAblenkverstärkungin einerKathodenstrahlröhre。

    公开(公告)号：EP0241945A2

    公开(公告)日：1987-10-21

    申请号：EP87105744.4

    申请日：1987-04-16

    申请人： Iwatsu Electric Co., Ltd.

    发明人： Akizuki, Osamu ,  Kato, Takefumi

    IPC分类号： H01J29/80 ,  H01J29/62

    CPC分类号： H01J29/803

    摘要： A cathode ray tube (10) of the type having a target (18), an electron gun (26) for emitting a beam of electrons toward the target, deflection means (40, 44) disposed between the target and the electron gun for deflecting the beam in two orthogonal directions, and a scan expansion lens system (46) disposed between the deflection means and the target for amplifying the deflections of the beam in both x- and y-axes directions. The lens system comprises two boxlike electrodes (50, 52) at least partly displaced from each other along the z axis. For higher deflection sensitivities of the scan expansion lens system (46) and the reduction of its axial dimension to a minimum, a pair of tongues (68,70; 68h, 70h) extend from either of the electrodes (50, 52) into the other, or two such pairs of tongues (68,70; 112,114) extend from both electrodes into interdigitating relation to each other. Upon application of prescribed potentials to the two electrodes, a quadrupolar lens field is created in the space between the pair of pairs of tongues for deflection amplification in both directions. On having been deflected vertically, the beam has its deflection amplified by having its traveling direction inverted with respect to the tube axis. The beam that has been deflected horizontally has its deflection magnified without having its traveling direction inverted.

    摘要翻译： 一种具有目标物（18）的类型的阴极射线管（10），一个用于向靶射出电子束的电子枪（26），设置在靶和电子枪之间的偏转装置（40,44），用于 在两个正交方向偏转光束，以及设置在偏转装置和目标之间的扫描扩展透镜系统（46），用于放大在x轴和y轴方向上的光束的偏转。 透镜系统包括沿着z轴彼此至少部分地位移的两个盒状电极（50,52）。 为了使扫描扩展透镜系统（46）的较高偏转灵敏度和其轴向尺寸减小至最小，一对舌片（68,70; 68h，70h）从任一个电极（50,52）延伸到 其他或两个这样的舌片对（68,70，112,114）从两个电极彼此延伸成叉指关系。 在向两个电极施加规定的电位时，在一对舌片之间的空间中产生四极透镜场，以在两个方向上进行偏转放大。 在已经垂直偏转的情况下，通过使光束的行进方向相对于管轴线反转，其偏转被放大。 已经水平偏转的光束，其偏转放大而不使其行进方向反转。

    DISPLAY DEVICE AND COLOUR CATHODE RAY TUBE FOR USE IN A DISPLAY DEVICE
    96.
    发明授权
    DISPLAY DEVICE AND COLOUR CATHODE RAY TUBE FOR USE IN A DISPLAY DEVICE 失效
    显示装置及彩色显像管用在显示设备

    公开(公告)号：EP0783764B1

    公开(公告)日：2002-01-30

    申请号：EP96916270.0

    申请日：1996-06-21

    申请人： Koninklijke Philips Electronics N.V.

    发明人： VAN DER POEL, Willibrordus, Adrianus, Johannes, ,  SPANJER, Tjerk, Gerrit

    IPC分类号： H01J29/50 ,  H01J29/62

    CPC分类号： H01J29/503 ,  H01J2229/4841

    摘要： A display device with a DAF-gun (Dynamic Astigmatism and Focusing) in which the first focusing electrode (G3a) has at the side facing the pre-focusing part of the electron gun three elongated apertures (36, 37, 38). Hereby in operation in the vicinity of the elongated apertures an electron-optical field is generated between the pre-focusing part of the electron gun and the elongated apertures for reduction of the vertical dimension (vertical meaning transverse to the plane of the electron beams) of the beam size of the electron beams in the main lens. This reduction of the electron beam size results in an increase of the vertical dimension of the beam spot on the screen. This reduces Moiré effects.

    A color cathode ray tube
    98.
    发明公开
    A color cathode ray tube 失效
    彩色阴极射线管

    公开(公告)号：EP0856869A1

    公开(公告)日：1998-08-05

    申请号：EP98101405.3

    申请日：1998-01-27

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Ueno, Hirofumi, c/o Kabushiki Kaisha Toshiba ,  Takekawa, Tsutomu, c/o Kabushiki Kaisha Toshiba

    IPC分类号： H01J29/62 ,  H01J29/50

    CPC分类号： H01J29/628 ,  H01J2229/4841 ,  H01J2229/568

    摘要： An electron gun (17) comprises a supplementary grid (SG) applied with a voltage which dynamically changes in synchronization with a magnetic field generated by a deflection yoke, between a second grid (G2) and a third grid (G3). Further, by the second grid (G2), the supplementary grid (SG), and the third grid (G3), an electron is constructed which has an astigmatic aberration in which a focusing force in the horizontal direction is stronger than a focusing force in the vertical direction. The intensity of the astigmatic aberration of the electron lens is dynamically changed by a voltage applied to the supplementary grid.

    摘要翻译： 一个电子枪（17）包括一个辅助栅极（SG），在第二栅极（G2）和第三栅极（G3）之间施加一个与偏转线圈产生的磁场同步动态变化的电压。 此外，通过第二栅格（G2），辅助栅格（SG）和第三栅格（G3），构造具有像散的像差，其中水平方向上的聚焦力比聚焦力 垂直方向。 电子透镜的像散像差的强度通过施加到辅助栅极的电压而动态地改变。

    Focusing electrode in electron gun for color cathode ray tube
    99.
    发明公开
    Focusing electrode in electron gun for color cathode ray tube 失效
    彩色阴极射线管电子枪中的聚焦电极

    公开(公告)号：EP0837487A3

    公开(公告)日：1998-05-27

    申请号：EP97302287.4

    申请日：1997-04-03

    申请人： LG ELECTRONICS INC.

    发明人： Kim, Hyun Cheol ,  Kim, Won Hyun ,  An, Sung Gi ,  Yoon, Hi Won ,  Cho, Sung Ho

    IPC分类号： H01J29/62

    CPC分类号： H01J29/503 ,  H01J29/628

    摘要： Focusing electrode in an electron gun for a color cathode ray tube, which can provides a higher freedom in an electron gun design and reduce an error occurred during assembly of the electron gun, the focusing electrode including a first focusing electrode for being applied of a constant voltage, the first focusing electrode having vertically elongated electron beam pass-through holes formed therein, and a second focusing electrode for being applied of a dynamic voltage, the second focusing electrode having electron beam pass-through holes each with a pair of burring parts formed on upper and lower edges thereof for being disposed in each of the vertically elongated electron beam pass-through holes in the first focusing electrode, whereby the pair of burring parts can be disposed in each of the vertically eleongated electron beam pass-through holes in the first focusing electrode without change of a horizontal diameter of the electron beam pass-through holes in the first focusing electrode.

    摘要翻译： 在用于彩色阴极射线管的电子枪中聚焦电极可以提供电子枪设计中更高的自由度并减少组装电子枪期间发生的误差，聚焦电极包括用于施加常数的第一聚焦电极 所述第一聚焦电极具有在其中形成的垂直伸长的电子束通孔;以及第二聚焦电极，用于施加动态电压，所述第二聚焦电极具有电子束通孔，每个电子束通孔具有形成的一对翻边部分 在其上下边缘处设置在第一聚焦电极中的每个垂直伸长的电子束通孔中，由此该对内缘翻边部分可以设置在第一聚焦电极中的每个垂直伸长的电子束通孔中 第一聚焦电极而不改变第一聚焦电子中电子束通孔的水平直径 颂。