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28 条记录 (耗时 0.01 秒)

    RASTER DEMODULATION APPARATUS AND METHOD
    1.
    发明授权
    RASTER DEMODULATION APPARATUS AND METHOD 失效
    方法和装置地球RAST调制

    公开(公告)号：EP0806050B1

    公开(公告)日：1999-01-13

    申请号：EP95928560.2

    申请日：1995-08-15

    申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

    发明人： BEETESON, John ,  KNOX, Andrew

    IPC分类号： H01J29/56 ,  H01J29/66

    CPC分类号： H01J29/563 ,  G09G1/00 ,  H01J29/66 ,  H04N3/26 ,  H04N3/27 ,  H04N3/30

    摘要： Raster demodulation apparatus for a raster-scanned cathode ray tube display comprises control means (400) for varying the shape of at least one scanned electron beam spot (661-663) in a direction perpendicular to scan lines of the raster. The control means (400) comprises an electromagnet (700) for mounting on the neck of the cathode ray tube. The magnet (700) has eight pole pieces (720-790) spaced around the neck of the cathode ray tube (210). A winding (710) passes around each of the pole pieces (720-790) in succession in opposite directions so that, when an electrical current (I) is passed through the winding, adjacent pole pieces (720-790) around the neck of the cathode ray tube have different magnetic polarity to generate, within the neck of the cathode ray tube (210), a magnetic field in which magnetic lines of force (680) pass through the or each electron beam (661-663) only in a direction parallel to the scan lines of the raster.

    Colour display tube system
    2.
    发明公开
    Colour display tube system 失效
    Farbbildröhrensystem。

    公开(公告)号：EP0507383A1

    公开(公告)日：1992-10-07

    申请号：EP92200858.6

    申请日：1992-03-26

    申请人： Philips Electronics N.V.

    发明人： Sluyterman, Albert Aemilius Seyno

    IPC分类号： H01J29/56 ,  H01J29/70

    CPC分类号： H01J29/705 ,  H01J29/563

    摘要： Colour display tube comprising an electron gun (5) for producing three co-planar electron beams (6,7,8), and including a deflection system which, in operation, generates deflection fields of the self-convergent type, with three consecutive elements (14,14',14") influencing convergence being arranged between the electron gun (5) and the display screen (2), the two outer elements producing, in operation, opposite effects and the central element being energizable for correcting remaining convergence errors.

    摘要翻译： 彩色显象管包括用于产生三个共面电子束（6,7,8）的电子枪（5），并且包括在运行中产生自会聚类型的偏转场的偏转系统与三个连续的元件 在电子枪（5）和显示屏（2）之间设置影响会聚的（14,14'，14“），两个外部元件在操作中产生相反的效果，并且中心元件被激励以校正剩余的收敛误差 。

    Single beam cathode ray tube
    3.
    发明公开
    Single beam cathode ray tube 失效
    单束阴极射线管

    公开(公告)号：EP0112567A1

    公开(公告)日：1984-07-04

    申请号：EP83113067.9

    申请日：1983-12-23

    申请人： Matsushita Electronics Corporation

    发明人： Ashizaki, Shigeya ,  Kimura, Masamichi ,  Taniguchi, Masato

    IPC分类号： H01J29/56

    CPC分类号： H01J29/707 ,  H01J29/563

    摘要： In a deflection means 11 having a field of pin-cushion type flux distribution, at least a pair of T-shaped magnetic pole pieces 9,10 are disposed between the front end of an electron gun 2 and the center part of the deflection means 11, thereby to form a barrel type flux distribution, to attain high resolution even at peripheral part of the fluorescent screen.

    摘要翻译： 在具有枕形磁通分布场的偏转装置11中，至少一对T形磁极片9,10设置在电子枪2的前端和偏转装置11的中心部分之间 从而形成桶型通量分布，从而即使在荧光屏的周边部分也能获得高分辨率。

    Color cathode-ray tube and color cathode-ray tube apparatus
    5.
    发明公开
    Color cathode-ray tube and color cathode-ray tube apparatus 审中-公开
    FarbkathodenstrahlröhreundFarbkathodenstrahlröhrengerät

    公开(公告)号：EP1100108A2

    公开(公告)日：2001-05-16

    申请号：EP00120903.0

    申请日：2000-09-26

    申请人： Matsushita Electronics Corporation

    发明人： Iwasaki, Katsuyo

    IPC分类号： H01J29/70 ,  H01J29/56

    CPC分类号： H01J29/563 ,  H01J29/68 ,  H01J29/703

    摘要： A color cathode-ray tube including an in-line electron gun and a color cathode-ray tube apparatus including the same are provided. At an end, on a screen side, of the electron gun, two pairs of members 11, 11', 12, and 12' for generating a magnetic field are placed above and below side beams of three electron beams so as to sandwich them, respectively. Between each of the two pairs of members for generating a magnetic field, a localized barrel magnetic field is formed to vary cross-sectional shapes of the side beams positioned on both sides of a center beam so that the cross-sectional shape of one of the side beams is horizontally or vertically elongated to a higher degree than that to which the cross-sectional shape of the other of the side beams is. Magnetic fields for reverse correction of spot distortions of the side beams are generated and therefore the symmetry in the spot distortions of the side beams asymmetric with each other is improved, thus improving focus quality.

    摘要翻译： 提供包括一字形电子枪的彩色阴极射线管和包括该彩色阴极射线管的彩色阴极射线管装置。 在电子枪的屏幕侧端部，用于产生磁场的两对构件11,11'，12和12'放置在三束电子束的侧梁的上方和下方，以夹持它们， 分别。 在用于产生磁场的两对构件中的每一个之间，形成局部的筒状磁场以改变位于中心梁的两侧的侧梁的横截面形状，使得其中的一个的横截面形状 侧梁水平或垂直地延伸到比另一个侧梁的横截面形状更高的程度。 产生用于反向校正侧光束的光斑变形的磁场，因此改善了侧光束的光束失真的对称性，从而提高了聚焦质量。