A lamphouse (100) is configured to accommodate and cool an image projector
lamp (300). The lamphouse receives through an air intake opening (111)
cool airflow (A.sub.1) drawn by a fan and is equipped with an internal
chamber (130) and plural internal fins (120). Plural exhaust openings
(110) on the downstream side of the lamp reflector (310) and burner (310)
are arranged essentially perpendicular to the direction of flow of air
(A.sub.1) heated by the lamp and such that, when the airflows from the
surroundings (A.sub.1) and (A.sub.2) are mixed in the area immediately
after the lamphouse, a resulting airflow (A.sub.3) will, upon reaching
projector exhaust openings (410), have a substantially uniform and
relatively low temperature. The exhaust openings (110) are configured so
that the heated airflow is mixed with the cooler airflow before striking
the projector chassis reaching the projector exit grill.
