| 摘要 |
<p>PURPOSE:To transmit light efficiently and to improve resolution by transmitting light through photoconductive pathes and changing transmission loss of the photoconductive paths by depression of touch input. CONSTITUTION:An optical transmission means is constituted of a variable photoconductive member 13 having meshy photoconductive paths 11, 12. Many Y- coordinate detecting photoconductive paths 11 and many X-coordinate detecting photoconductive paths 12 are arranged on prescribed positions and a finger touch input part is distorted by its depression to change the optical transmission loss so as to be increased. Namely, optical sensor means consisting of a projector 14 and a photodetector 15 respectively are arranged on the peripheral part of an X-Y coordinate screen formed by a flexible plate-like photoconductive member 13 and the change of light projected from the X and Y axes projectors 14 in the arrow directions is detected by the respective couple of the photodetectors 15 to detect the coordinate position. Therefore, the detection is executed by the light shielding action of finger touch.</p> |
