| 摘要 |
<p>PURPOSE:To input position information with spatial movement to reduce labor by using an optical system consisting of a light emitting element and a light receiving element. CONSTITUTION:The light emitted from the light emitting element mounted on a face light emitting part 11 passes a lens 12 to become parallel rays of light, and they reach the upper face of a luminous plate part 1 through a position display part 12 and an upper face protective cover to express drawing information on the display part 13. When a light receiving part 2 is moved onto the luminous plate part 1, the light receiving element sends an output proportional to drawing information.</p> |
