<p>A calibration system (1) having a plurality of light sources (150) comprises: a display (120) for outputting an image; an adjustment mechanism (110) for changing the position and posture of the display; a mirror (200) for changing the image from the display and the traveling directions of the light from the light sources; a light receiving element (301) for detecting, through the mirror, the light from the light sources; and a controller (130) for, based on the data from the light receiving element, controlling the position and posture of the display through the adjustment mechanism so that the image from the display forms at a predetermined position on the light receiving element through the mirror.</p>
