Projector comprising a cooling system

摘要

In a projector (1) that includes a light source (61), an image forming unit (101), a projection optical unit (102), and a case (59) to contain the light source (61), the image forming unit (101), the projection optical unit (102), and the power supply (80), takes outside air in through a first intake duct (84) provided on the case (59), cools the power supply (80) by circulating the taken outside air to the power supply (80) circumventing the projection optical unit (102), and exhausts the air after cooling through an exhaust vent (85) provided on the case (59). A second intake duct (131) is provided nearby the power supply (80) compared to the first intake duct (84), and the amount of outside air drawn into the case (59) through the second intake duct (131) is larger than the amount of outside air drawn into the case (59) through the first intake duct (84).