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    • 12. 发明申请
    • CATHODE RAY TUBE DISPLAY DEVICE
    • CATHODE RAY TUBE显示设备
    • WO1984004642A1
    • 1984-11-22
    • PCT/GB1984000156
    • 1984-05-09
    • THE GENERAL ELECTRIC COMPANY, P.L.C.HILSUM, Cyril
    • THE GENERAL ELECTRIC COMPANY, P.L.C.
    • H04N03/22
    • H04N3/22
    • A display device which is corrected for vibration, for example between screen (4) and the electron gun (2) in a C.R.T. (1). The device comprises an optical system (6) on the observer side of the screen (4) for directing the light from a small part of the screen (9), onto which the electron beam is directed at intervals, onto a photocell (10) which detects the position of the light spot. The output signal from the photocell is processed in a circuit (5) to provide a correction signal which is applied to the deflection system (3) of the C.R.T. to reduce the deviation of the light spot from the position it would have in a vibration-free environment.
    • 校正振动的显示装置,例如在C.R.T.中的屏幕(4)和电子枪(2)之间。 (1)。 该装置包括在屏幕(4)的观察者侧上的光学系统(6),用于将来自屏幕(9)的小部分的光线间隔地引导到光电管(10)上, 它检测光斑的位置。 来自光电管的输出信号在电路(5)中被处理,以提供校正信号,该校正信号被施加到C.R.T.的偏转系统(3)。 以减少光斑与其在无振动环境中的位置的偏差。