Light-source cooling device and projection display device provided with same

摘要

A light-source cooling device is provided that, without adopting a complex configuration, is capable of reducing the temperature difference between the top portion and bottom portion of a light source despite change of the installation orientation. The light-source cooling device of the present invention for cooling a light source (11) is provided with: two ventilation ducts (4and 5) for guiding cooling airflows (13a and 13b) to strike against the light source (11) from opposite directions, and two fans (2and 3) for impelling the cooling airflows (13a and 13b) to two airflow guide units (4and 5).