A projector includes a plurality of light modulation devices and a cooling device. The cooling device includes a cooling fan configured to introduce and discharge air, and a duct configured to guide air received from the cooling fan toward the plural light modulation devices. The duct includes a first duct portion configured to allow the air to flow through the light modulation devices from sides of the light modulation devices, and a second duct portion which communicates with the first duct portion and guides a part of the air flowing through the first duct portion toward devices other than the light modulation devices.