Patent attributes
By forming an infrared light emitting surface 21 on the front side of a display 11, irradiating the infrared light emitting surface 21 with infrared light, forming a reproduced image R2 of the infrared light emitting surface 21 at a position of a reproduced image R1, and photographing, through an infrared camera 26 provided at the back of the reproduced image R1, reflected light from the reproduced image R2 of the infrared light emitting surface 21 in the case where an indicating means such as a finger indicates the reproduced image R1, a position of the indicating means in contact with the reproduced image R1 becomes detected. An extremely hygienic method and apparatus for contactlessly detecting an indicated position on a reproduced image with which an input without touching a display is enabled can thereby be provided.
