Projector having duct for guiding air from exhaust fan to exhaust port

A cooling system of a projector including a light source device and a power supply device configured to supply a electric power to the light source device comprising:

• an exhaust port provided on a casing of the projector;
• a first duct includes an inlet port and configured to guide air that cooled the light source device to the exhaust port;
• and
• an exhaust fan provided on a downstream side of a cooling air flow channel of the light source device and an upstream side of the cooling air flow channel of the first duct and configured to take air from the light source device, wherein
• the first duct is connected to the exhaust fan so as to take the air from the exhaust fan and exhaust the same from the exhaust port, and includes an air incoming port configured to guide the air that cooled the power supply device, and
• the first duct guides the air taken in from the light source device through the inlet port and the air take in from the power supply through the air incoming port together to the exhaust port.

A projector comprising:

• a light source device;
• an exhaust fan configured to take air in the vicinity of the light source device in and discharge the same;
• a power supply device configured to supply electric power to components of the projector;
• an outer casing configured to accommodate the light source device and the power supply device in the interior thereof and provided with an exhaust port formed thereon;
• and
• a first duct configured to guide the air discharged from the exhaust fan to the exhaust port,
• wherein:
• the power supply device includes a second duct configured to guide the air in the interior of the power supply device toward the first duct,
• an air incoming port configured to take the air discharged from the second duct into the first duct is formed with the first duct,
• the power supply device and the light source device are arranged in an L-shape,
• the exhaust fan is located so as to be positioned inside the power supply device and the light source device arranged in the L-shape, and
• the first duct is extended toward the power supply device as it goes to a distal end.