| 摘要 |
The present invention relates to an apparatus for mixing light beams. The apparatus comprises an illuminated surface and a plurality of reflecting surfaces, wherein the reflecting surfaces are used for reflecting the light beams in the apparatus, and the reflecting surfaces and the illuminated surface are nonparallel to each other so that the light beams can be reflected between the reflecting surfaces so as to increase the propagation of the light beams in longitudinal direction. As a result, the chance for the light beams to be mixed is raised, and the mixing performance is also raised.
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