| 摘要 |
<p>In a projection display device provided with an optical unit, a power unit, and an outer case housing the optical and the power units, an air inlet opening (75) is formed at one end section of the power unit and an air outlet opening (77) is formed at the other end section. The opening (75) is provided near the air inlet of the outer case. Since the power unit is provided with the inlet openings (75 and 77), the inside of the power unit can be cooled independently with high efficiency, and the optical and the power units can be arranged closely to each other.</p> |
