Cooling of a LED light source apparatus and projector type image display apparatus

摘要

The present invention is directed to provide a light source apparatus that includes space-saving LED cooling unit, and a projector type image display apparatus including the same. The light source apparatus of the present invention includes a plurality of LEDs (10a,10b), a plurality of heatsinks (20a,20b) that are respectively thermally coupled to the LEDs and that are disposed in series with an interval between each other, and a cooler mechanism (40,45) that sends a cooling airflow into the heatsinks along their disposition direction. A heatsink included in the plurality of heatsinks that dissipates the heat of an LED having a greater heat generating amount out of the plurality of LEDs is disposed downstream in the cooling airflow from the other heatsink.