PROJECTOR

PROBLEM TO BE SOLVED: To provide a projector capable of correcting focus deviation and achieving high luminance with a simple configuration.SOLUTION: A projector 1 including a display device 2 modulating illumination light and a projection lens 35 projecting the light modulated by the display device 2, further includes a holding member 5 for holding the display device 2 and the projection lens 35. The holding member 5 includes a first holding member 50 for holding the projection lens 35, a second holding member 60 held by the first holding member 50, and a third holding member 70 held by the second holding member 60, for holding the display device 2. The total amount of expansion/contraction of the holding member 5 in the direction of the optical axis OA of the projection lens 35 including the expansion/contraction direction with the change in temperature corresponds to the amount of increase/decrease of the focal distance of the projection lens 35 with the change in temperature.