Patent ID: 8905556

Claim:
A projector that projects an image based on image data, comprising: a lens driving unit that drives a lens unit, including a projection lens, to perform a lens shift to move the position of the projection lens in a direction generally parallel to the projected first image, and a zoom to increase and decrease magnification of the image; a position detecting unit that detects position information of the lens unit; a projection unit that projects a first reception image that receives a selection of a predetermined state; a reception unit that receives the selection of the predetermined state; and a control unit that controls the lens shift by the lens driving unit based on the selection of the predetermined state, which is received by the reception unit, in such a manner that zoom is performed in the predetermined state for a first image which is projecting in a state that a central position of the first image is different from a basis position of the zoom, the zoom performed by the lens driving unit based on zoom instruction information adjusting angle of view with respect to the projection lens, wherein the projection unit projects a second reception image that receives a selection of a reference side whose position is not changed in the first image by the zoom, the control unit controls the lens shift by the lens driving unit in such a manner that a position of the selected reference side in the first image is not changed by the zoom, and the reception unit that receives the selection of the reference side.