Imaging prevention method and system
    41.
    发明授权
    Imaging prevention method and system 失效
    成像预防方法和系统

    公开(公告)号:US06742901B2

    公开(公告)日:2004-06-01

    申请号:US10058688

    申请日:2002-01-28

    IPC分类号: G03B2100

    摘要: As an imaging prevention method for interfering unauthorized imaging of a number of visual images projected on a screen, there is employed a method for projecting infrared light to a viewer/audience direction from at least one or more infrared light projector devices disposed at a rear side of the screen. According to the method, an amount of infrared light is directly incident into an imaging apparatus whereby increasing the prevention effect causes more infrared light to be directly incident into the imaging apparatus of a person conducting the unauthorized act.

    摘要翻译: 作为用于干扰投影在屏幕上的多个视觉图像的未经授权的成像的成像防止方法,采用了从设置在后侧的至少一个或多个红外光投射装置将红外光投射到观察者/观众方向的方法 的屏幕。 根据该方法,红外光的量直接入射到成像装置中,从而增加防止效果使得更多的红外光直接入射到进行未授权动作的人的成像装置中。