OPTICAL SCANNING TOUCH PANEL

摘要

PROBLEM TO BE SOLVED: To obtain an optical scanning touch panel with an inexpensive large screen with a simplified structure. SOLUTION: In the optical scanning touch panel constituted by providing an optical scanning unit 15 at both adjacent corners of a rectangular substrate 10 and a retroreflection body on three sides of the substrate 10, the optical scanning units 15a, 15b are constituted by installing a unit main body 22 provided with a light emitting element, a light receiving element 38, a polygon mirror 27 on a unit supporting board 29 fixed on the substrate 10, the unit supporting board 29 is constituted by being installed on the substrate 10 by its fixing part 30 and supporting the unit main body 22 on a supporting part 31 and installing the unit main body 22 so that height and inclination are freely adjustable by interposing springs 36a to 36c on the supporting pat 31 and by screws 35a to 35c. The optical scanning touch panel in larger size than the conventional one is provided with the simplified structure and at a remarkably low cost.