Ventilation system for slide projector

摘要

In a side projector comprising an electrical light source, condenser and slide carrier, as well as a cooling fan, the air is blown over the lamp, and/or the condenser, and/or the slide carrier.The fan (4) which may be of the cross-flow type, is driven by a motor (2), so that the light source (6), the condenser (7) and the slide carrier (8) are all located on the high pressure side. The heated air is exhausted through a grille comprising angled vanes, preventing emission of excessive light.