OPTICAL RANGE-FINDING APPARATUS

摘要

PROBLEM TO BE SOLVED: To attain miniaturization as curbing an influence of stray light.SOLUTION: An optical range-finding apparatus 1 comprises: a light source 22; a light emission mirror 12a that reflects laser light emitted from the light source 22 in a direction of an object 30, and scans the laser light by oscillating centering around a first oscillation shaft 18a; a light reception mirror 12b that oscillates centering around a second oscillation shaft 18b to reflect the laser light reflected upon the object 30 toward a prescribed direction; a coil 14, and magnets 16a and 16b that synchronously oscillate the light emission mirror 12a and the light reception mirror 12b; and a light reception unit 24 that receives the laser light from the object 30 reflected by the light reception mirror 12b. The light emission mirror 12a and the light reception mirror 12b are oscillated by the coil 14, and the magnets 16a and 16b as maintaining an angle formed by a mirror surface 13b of the light emission mirror 12a and a mirror surface of the light reception mirror 12b at a prescribed angle.SELECTED DRAWING: Figure 1