PROJECTION SYSTEM AND ILLUMINATION SYSTEM
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United States of America Patent
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Dec 7, 2017
app pub date -
May 31, 2017
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Jun 2, 2016
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Abstract
An illumination system of a projection system includes a first illumination integrating element, a second illumination integrating element, first light source elements, and second light source elements. The first/second illumination integrating element includes first/second light-reflecting regions separated from each other and located on a first/second plane. The second plane is not parallel to the first plane. The first/second light source elements are adapted to provide first/second light beams respectively. The first/second light-reflecting regions are located on a transmission path of the first/second light beams, and the first/second light beams are adapted to travel along the illumination direction after being reflected by the first/second light-reflecting regions. The illumination system has good optical quality. The projection system has good image quality.
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