Abstract: A projector includes: an exterior housing configuring an exterior; a projection optical device which projects an image toward a projection surface; and a plurality of operation buttons which, being disposed in such a way as to be exposed to the outside of the exterior housing, an image opening for allowing the image projected from the projection optical device to pass through is formed in one sidewall, among sidewalls configuring the exterior housing, which intersects in a vertical direction, the projection optical device includes a reflecting mirror which reflects the image, and projects it through the image opening, and the plurality of operation buttons are disposed on a side of the one sidewall farther from the projection surface than the image opening.

Abstract: An optical device that includes a light modulation device, a projection optical device, and a retention member that holds the light modulation device and the projection optical device. The retention member includes: a projection optical device attachment section for attach the projection optical device; and a light modulation device attachment section that is provided for attachment of the light modulation device with a protrusion to a side opposite to the projection optical device along an optical-axis direction of the projection optical device, and the projection optical device attachment section includes: a fixing section that fixes the projection optical device substantially at a position of the center of gravity; a support section that is disposed opposing the fixing section in the optical-axis direction, and supports the light modulation device attachment section; and a connection section that connects together the fixing section and the support section.

Abstract: A projector includes an adjusting leg section configured to be capable of protruding/retracting outside/inside an exterior chassis and changing a tilt condition of the projector, an interlocking device that displaces based on the protruding/retracting movement of the adjusting leg section, a variable resistance device that has a resistance that varies based on displacement of the interlocking device, a voltage detection device that detects a voltage based on the resistance of the variable resistance device, a storage device that stores keystone distortion correction amount information, and a keystone distortion correction device that obtains a keystone distortion correction amount from the keystone distortion correction amount information based on the voltage detected by the voltage detection device, and that corrects the keystone distortion of the projection image using the keystone distortion correction amount.