PROJECTOR HAVING BRIGHTNESS-ADJUSTING MODULE AND METHOD FOR ADJUSTING BRIGHTNESS FOR THE SAME
    2.
    发明申请
    PROJECTOR HAVING BRIGHTNESS-ADJUSTING MODULE AND METHOD FOR ADJUSTING BRIGHTNESS FOR THE SAME 审中-公开
    具有亮度调节模块的投影仪及其调整亮度的方法

    公开(公告)号:US20070171386A1

    公开(公告)日:2007-07-26

    申请号:US11308435

    申请日:2006-03-24

    IPC分类号: G03B21/20

    摘要: A projector comprises a light-emitting device for generating light beams, a reflector for focusing the light beams to a predetermined region, a light integrator positioned at the predetermined region and a brightness-adjusting module for adjusting the brightness of the projector by changing the relative distance of the reflector and the light integrator. Preferably, the reflector is an elliptical reflector having two foci, the light-emitting device is positioned at one of the two foci and the other focus is laid in the predetermined region. The present method for adjusting the brightness of a projector is characterized in adjusting the distance between the light integrator and the reflector to adjust the brightness of the projector.

    摘要翻译: 投影机包括用于产生光束的发光装置,用于将光束聚焦到预定区域的反射器,位于预定区域处的光积分器和用于通过改变相对位置来调节投影仪的亮度的亮度调节模块 反射器和光积分器的距离。 优选地,反射器是具有两个焦点的椭圆形反射器,发光装置位于两个焦点中的一个,另一个焦点放置在预定区域中。 用于调节投影仪的亮度的本方法的特征在于调节光积分器和反射器之间的距离以调节投影仪的亮度。