| 摘要 |
A pico projection light system for improving an optical engine of a pico projector and enhancing effects of lighting. The improved pico projection light system comprises a light-emitting diode acting as a light source, a set of three collimators arranged with spaces therebetween and converting light emitted by the light-emitting diode into a parallel light, a set of two lens arrays arranged with spaces therebetween and uniformizing the parallel light, a set of two positive lenses arranged with spaces therebetween and magnifying light emitted from the lens arrays, a polarizing beam splitter receiving the magnified light and having a horizontal polarized light pass therethrough, and a reflective liquid crystal panel reflecting light and modulating optical signals projecting on a screen.
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