| 摘要 |
A light source apparatus is disclosed which is capable of emerging predetermined linearly polarized light while a loss of light amount is reduced. The light source apparatus comprises plural light-emitting elements which are disposed so that their light-emitting surfaces face the direction of an emergence surface of the light source apparatus, and a polarization selective element which transmits a light component with a first polarization direction and reflects a light component with a second polarization direction different from the first polarization direction. The apparatus further comprises a reflecting surface which is disposed at a position closer to the light-emitting elements than the polarization selective element and reflects the reflected light from the polarization selective element to the polarization-selective element side.
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