A projector includes: a light source; a light modulation device which modulates a light emitted from the light source and forms image light; a projection device which magnifies and projects the image light; and an exterior casing, wherein on a light exiting surface for the image light of the exterior casing, a first opening is formed and a projection direction change unit which opens and closes the first opening is provided, and the projection direction change unit has: a cover which has a second opening for passing the image light from the projection device and which is provided rotatably in an off-plane direction with respect to the light exiting surface and thus opens and closes the first opening; a shutter which is movably provided along an inner surface of the cover and thus opens and closes the second opening; and a reflection mirror which is provided on an inner surface of the shutter and reflects the image light from the projection device.