| 摘要 |
<p>PROBLEM TO BE SOLVED: To ensure the easy view of a coordinate input face by reducing any chance that an operator or a person who views the coordinate input face is apt to view reflected lights which are not recursively reflected in an optical coordinate detector. SOLUTION: An optical coordinate detector 100 is provided with a recursive reflecting part 104 for recursively reflecting probe lights with which a coordinate input face 103 is irradiated in parallel from light emitting and receiving parts 101L and 101R. Moreover, a masking shield 108 for interrupting any reflected lights which are not recursively reflected is arranged at the edge of the recursive reflecting part 104 in parallel with the coordinate input face 103 in the direction of a detection region.</p> |
