<p>Provided is an input device which can generate an appropriate click feeling even when an illumination region is optically separated so as to exclude affects by mutual leak lights. A first illumination region (7A) is separated from a second illumination region (7B) by a light shielding wall (7c). Thus, it is possible to exclude affects given by a leak light of one of the illumination regions to the other illumination region. Moreover, a protrusion (7d) is arranged to press down the apex of a dome (5A) at the center of the light shielding wall (7c). Accordingly, even if the first illumination region (7A) is optically separated from the second illumination region (7B) by the light shielding wall (7c), it is possible to generate an appropriate click feeling.</p>
