Invention Grant

Projector
Abstract:
A projector includes a polarization changing mechanism and a polarized beam splitter. The polarization changing mechanism is movable. A first polarized beam is configured to pass or not pass through the polarization changing mechanism. The first polarized beam transforms into a second polarized beam when the first polarized beam passes through the polarization changing mechanism. The polarized beam splitter has a light splitting surface. The first polarized beam enters the polarized beam splitter and is guided by the light splitting surface to travel in a first direction, when the first polarized beam does not pass through the polarization changing mechanism. The second polarized beam enters the polarized beam splitter and is guided by the light splitting surface to travel in the first direction or a second direction, when the first polarized beam passes through the polarization changing mechanism and transforms into the second polarized beam.
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