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    • 1. 发明授权
    • Lensless video projector
    • 无镜头视频投影机
    • US5959702A
    • 1999-09-28
    • US727850
    • 1996-10-04
    • John Mott Goodman
    • John Mott Goodman
    • H04N9/31
    • H04N9/3129
    • A video projector employs an acousto-optic deflector for moving a horizontal line of pixels vertically to form an image on a remote screen. Because the pixel images are formed from parallel beams, rather than by reimaging a line of pixel images on a vertical deflector, the image formed is in focus at all screen distances. The horizontal line of pixels is formed from a single laser beam which is expanded laterally and passes through individual intensity modulators before being aimed at the vertical deflector. The horizontal line of beams may be divided into zones, one above the other, and later reorganized into a single line at the vertical deflector, in order to reduce the size of the projector.
    • 视频投影仪使用声光偏转器来垂直移动水平线像素,以在远程屏幕上形成图像。 由于像素图像由平行光束形成,而不是通过对垂直偏转器上的一行像素图像进行成像,所形成的图像在所有屏幕距离处聚焦。 像素的水平线由横向扩展的单个激光束形成,并且在瞄准垂直偏转器之前通过各个强度调制器。 横梁的水平线可以被分成一个区域,一个在另一个之上,并且随后在垂直偏转器处被重组成单个线,以便减小投影仪的尺寸。