An optical scanning type touch panel comprises an optical unit, which is an integral structure comprising a light-emitting element that emits infrared laser light; a collimation lens that collimates the laser light from the light-emitting element; a photodetector element that receives scanning light; a slit board that limits the incident light to the photodetector element; a polygon mirror for angular scanning of the laser light from the light-emitting element; an aperture mirror that limits light projected from the collimation lens to the polygon mirror using an aperture and reflects the light reflected by the polygon mirror toward the photodetector element; a lens that converges the light reflected by the aperture mirror; and a motor that rotates the polygon mirror.
