| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an optical matrix type switch device with which optical matrix configuration can be simplified and no key input is performed unless an operator intensively performs input operation. SOLUTION: Along with one side of a display panel 1, plural light emitting elements 14 are arranged. Plural 1st light receiving elements 17 along with one side of display panel 1 facing the light emitting elements 14 and plural 2nd light receiving elements 18 along with one side of display panel 1 orthogonal to the 1st light receiving elements 17 are respectively arranged. Plural transparent operating members 3 are arranged while respectively facing respective display areas 1a on the display panel 1. Optical systems 13 respectively attached to the respective operating members 3 so as to be protruded to the optical path of light beam L of the light emitting elements 14 are provided for reflecting the light beams L at perpendicular reflection angle and making them incident on the 2nd light receiving elements 18.</p> |
