| 摘要 |
PROBLEM TO BE SOLVED: To reinforce and extend an interactive input/output environment. SOLUTION: This device is provided with an infrared LED panel 3 for irradiating the back side of a translucent face 2 with infrared light, a CCD(charge coupled device) camera 4 for image-picking up only infrared light that is made incident from the translucent face 2-side and a projector 5 for projecting and displaying an image (which does not contain infrared light) on the translucent face 2. When a user brings a physical object as input information close on the front side of the translucent face 2, infrared reflected light quantity changes. Thus, a controller 6 grasps the change of reflected light quantity as detected image information based on the image pickup signal of the CCD camera 4 and executes prescribed control for display on the translucent face 2 in response to input information obtained based on image information, for example. |
