| 摘要 |
A device for cooling a lamp, comprising a lamphouse (100) which can accommodate a lamp (300). The lamphouse is arranged to be able to receive through an air intake opening (111) an airflow (A1) drawn in from the surroundings by fan means, and is equipped with an internal chamber (130). The lamphouse is equipped internally with a plurality of fins (120). There is a plurality of exhaust openings (110) on the downstream side of said reflector (310) and burner (310), arranged essentially perpendicular to the direction of flow of the heated air (A1), and in such manner that when the airflows from the surroundings (A1) and (A'2<) are mixed in the area immediately after the lamphouse, the resulting airflow (A>3<) will, on reaching the exhaust openings (410) of the projector, have a substantially uniform and relatively low temperature. The exhaust openings are configured in such a manner that the heated airflow does not hit the projector chassis before it has been mixed with the cooler, airflow and before it reaches the exit grill. |
