Patent ID: 7997741

Claim:
A projector comprising: a light source device; an optical modulator which modulates luminous flux emitted from the light source device according to image information; a projection optical device which enlarges and projects the luminous flux modulated in the optical modulator; and an outer casing which houses the light source device, the optical modulator and the projection optical device thereinside, the outer casing having a ceiling surface and a bottom surface with respect to the vertical direction and a side surface connecting to the ceiling surface and the bottom surface, wherein: a first concave portion which is recessed toward the inside is formed at the bottom surface side in the side surface, a first connection terminal group connected to an external device through connection cables is arranged at a bottom portion of the first concave portion in an exposed state, a second concave portion recessed toward the inside in a depth dimension smaller than the first concave portion is formed at the ceiling surface side of the first concave portion, and a second connection terminal group connected to an external device through connection cables is arranged at a bottom portion of the second concave portion in an exposed state.