PROJECTION DEVICE AND LIGHT SOURCE TEMPERATURE REGULATING METHOD THEREFOR

摘要

A projection device and a light source temperature regulating method thereof are provided. The projection device comprises a light source, a cooling unit and a control unit. The light source is operated at a working temperature. The cooling unit provides a cooling capacity to the light source. The control unit actively adjusts the cooling capacity of the cooling unit, and thus allows the working temperature of the light source to vary within the anticipated range.