LASER PROJECTION APPARATUS
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United States of America Patent
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Issued Date -
Jul 2, 2015
app pub date -
Dec 23, 2014
filing date -
Dec 26, 2013
priority date (Note) -
Abandoned
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Abstract
A laser projection apparatus includes a first light mixing module and a light splitting module. The first light mixing module includes a plurality of first laser light sources, second laser light sources and a first dichroic mirror. The first and second laser light sources respectively emit first and second polarization lights; wherein the first and second polarization lights have different polarizations. The first dichroic mirror, disposed between the first and second laser light sources, includes first and second surfaces respectively toward the first and second laser light sources. The first surface reflects the first polarization light. The second polarization light sequentially passes through the second and first surfaces to mix with the first polarization light and thereby forming a first laser beam. The light splitting module is for receiving the first laser beam and splitting the first laser beam into a plurality of color lights.
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