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 25, 2014
filing date -
Dec 26, 2013
priority date (Note) -
Abandoned
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Abstract
A laser projection apparatus includes a light mixing module and a light splitting module. The light mixing module includes a first laser set, a quarter-wave plate, a first dichroic mirror and a reflector. The first laser set includes first and second laser sources for emitting first and second light with the same polarization, respectively. The first dichroic mirror reflects the first light along a first path and reflects the second light to pass through the quarter-wave plate. The reflector reflects the second light back to the quarter-wave plate, then the second light passes through the quarter-wave plate and the first dichroic mirror and then is mixed with the first light along the first path thereby forming a laser beam. The light splitting module receives the laser beam and splits the laser beam into a plurality of color lights.
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