| 摘要 |
<p>An optical unit is provided with a light source (1a); a light source (1b) arranged to face the light source (1a); a color wheel (2) arranged between the light sources (1a, 1b); a prism section (3a), which totally reflects light emitted from the light source (1a) and transmitted through the color wheel (2), and transmits light emitted from the light source (1b) to make the light enter the color wheel (2); and a prism section (3b), which totally reflects light emitted from the light source (1b) and transmitted through the color wheel (2), and transmits light emitted from the light source (1a) to make the light enter the color wheel (2).</p> |
