| 摘要 |
<p>A distance measuring apparatus is provided which utilizes a light-section method capable of preventing input of disturbance light without narrowing measurement viewing angle. The apparatus comprises: a laser emitting section (11, 14) for generating laser light, an imaging section (12, 13, 15, 31) for imaging reflected light reflected by a surface of a target object, a telecentric optical system lens (33) for forming an image of the reflected light on the imaging section, an optical filter (32) provided between the telecentric optical system lens and the imaging section and perpendicular to an optical axis of the telecentric optical system lens, for passing light of a wavelength band of laser light emitted from the laser emitting section, and a distance calculation section (16) for calculating a distance to the object based on an image taken by the imaging section and a positional relationship between a light emission position of the laser light and an image position. <IMAGE></p> |
