| 摘要 |
<p>A projector, comprising a multiblade fan (762) as an exhaust fan oppositely disposed to an exhaust port (2B) formed in an external case (2), sucking air inside the external case (2), and exhausting the air to the outside through the exhaust port (2B). The multiblade fan (762) is disposed so that the suction surface thereof is positioned along a surface perpendicular to an optical path surface formed by a light source device, light modulators, and projection optical device forming the device body of the projector. Also, the multiblade fan (762) is formed such that an exhaust port (762A) is tilted in the rotating direction of a fan, and exhausts sucked air to the end face of the external case where the exhaust port (2B) is formed at the generally center portion in the thickness direction. Thus, an exhausting efficiency can be increased by efficiently sucking inside air without increasing the rotational speed of the exhaust fan, and the thickness dimension can be reduced.</p> |
