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    • 2. 发明授权
    • Teleprompter with directional screen
    • 电话拨号器带定向屏幕
    • US06834968B2
    • 2004-12-28
    • US09957679
    • 2001-09-19
    • Justin PeatrossMichael WareRobert H. Todd
    • Justin PeatrossMichael WareRobert H. Todd
    • G03B2100
    • G03B21/602G03B21/10G03B21/28
    • A teleprompter configured to project an image to a viewer at a viewer location comprises a single-beam teleprompter projector, configured to project an image to a focal plane, and a directional screen, disposed at the focal plane. The directional screen is configured to direct the image to a focal point at the viewer location, and diffuse the image within a limited viewing region surrounding the focal point, such that the apparent brightness of the image to the viewer at the viewer location is increased, and the visibility of the image to persons other than the viewer is reduced. Because the device concentrates the light at the viewer, it can be made much larger than conventional video monitors typically used in speech-prompter settings, while still maintaining very high brightness.
    • 被配置为将图像投影到观看者位置的观众的电传遥控器包括被配置为将图像投影到焦平面的单光束遥控器投影仪和设置在焦平面处的定向屏幕。 定向屏被配置为将图像引导到观看者位置处的焦点,并且将图像漫射在围绕焦点的有限观看区域内,使得图像对于观看者位置处的观看者的视在亮度增加, 并且图像对于观看者以外的人的可视性降低。 由于该设备将光集中在观看者处,因此它可以比通常在语音提示器设置中使用的常规视频监视器大得多,同时仍然保持非常高的亮度。