Projection apparatus and cooling method of projection apparatus

Abstract

In order to provide a projection apparatus capable of discharging the interior heat to an exterior efficiently even when a first air outlet is covered, and capable of maintaining the interior temperature at appropriate temperature, this device is a projection apparatus having an optical unit for magnifying and projecting an image through the use of light of a light source, a reflecting means for reflecting the projected image from the optical unit described above, and a screen on which the projected image from the reflecting means described above is projected from a rear surface, including a housing containing the light source described above and having a plurality of surfaces and further including air exhausting means for discharging interior heat of the housing described above, and is provided respectively with at least one of air outlets on surfaces different from each other out of a plurality of the surfaces of the housing described above.

Dependencies are inferred from the claim text.