A projector includes a light source, a light collection optical system adapted to collect light emitted from the light source, and a light modulation panel adapted to modulate the light collected by the light collection optical system, the light collection optical system includes a color separation optical system adapted to separate the light emitted from the light source into a plurality of types of colored light, and a reflecting curved surface is disposed in at least a light path of the colored light with the longest light path length between the light source and the light modulation panel out of the plurality of types of colored light.