| CPC H04N 9/3167 (2013.01) [G02F 1/1326 (2013.01); H04N 9/3108 (2013.01)] | 18 Claims |
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1. A projector comprising:
a light source configured to emit first light, which is non-linearly polarized light;
a polarization conversion unit configured to convert the first light made incident from the light source into predetermined linearly polarized light;
a light modulation device including a liquid crystal panel which modulates the predetermined linearly polarized light converted by the polarization conversion unit; and
a superimposing optical system configured to superimpose, on the liquid crystal panel, the predetermined linearly polarized light made incident from the polarization conversion unit, wherein
the polarization conversion unit includes:
a polarizing separator configured to separate the first light into second light and third light based on polarized light components; and
a phase difference element configured to align polarization directions of the second light and the third light with the predetermined linearly polarized light,
the polarizing separator includes a polarizing separation element and a reflection element,
the polarizing separation element is provided in a tilted state with respect to a principal ray of the first light and separates the first light by reflecting a first linearly polarized light component in the first light toward the superimposing optical system as the second light and transmitting, as the third light, a second linearly polarized light component in a polarization direction different from a polarization direction of the first linearly polarized light component in the first light, and
the reflection element reflects the third light made incident from the polarizing separation element toward the superimposing optical system.
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