| 摘要 |
<p>Provided are a (coordinate) input device and an input system that can accurately detect an angle for triangulation from received light images. The input system (50) of one embodiment of the present invention is provided with a pen input device (40) and a pen (3) that emits light. The pen input device (40) comprises: a transparent light guide plate (1), said light guide plate having a surface that the pen (3) can be brought into contact with, that combines the light from the pen (3) and transmits said light internally; imaging units (10, 20) that capture a portion of the light beams that are transmitted within the transparent light guide plate (1) at positions that are different from one another; and a detection device (60). The contact coordinate position of the pen (3) is obtained by the detection device (60) on the basis of the image captured by each imaging unit.</p> |
