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最近国外生产了一种彩色电视放映机,它可以在电影银幕上放出高质量的彩色电视图象.这种电视机中有一个5千瓦的氙灯光源和一套类似于电影放映机的光学系统,只是不用电影胶片而把它换成一个粘液控制层.这个控制层是为这种电观放映机专门制造的,并且具有良好的电、机械、化学和光学特性.当控制层完全光滑的时候,氙灯的光线完全被这层光栅所遮断,
Recently, a color TV projector was produced abroad which can emit high-quality color TV images on a movie screen with a 5 kilowatt xenon light source and a set of optical systems similar to a movie projector, The film is replaced by a mucilage control layer which is specially made for this type of electrical projector and has good electrical, mechanical, chemical and optical properties. When the control layer is completely smooth, the xenon lamp light Completely blocked by this layer of grating,