| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-precision optical distance measuring device capable of easily correcting a signal (noise) reflected by a protective cover and detected by a light receiving element, without requiring a special measurement environment, when the protective cover is provided in front of the distance measuring device.SOLUTION: In an optical distance measuring device, a correction operation part computes a correction coefficient corresponding to the intensity distribution of cover reflected light from intensity distributions SA, SB of partial regions 8a, 8b at least on one side of both ends of a light receiving element, and corrects the intensity distribution S0 of spot light, and a distance computing part computes the distance to a measuring object based on the output from the correction operation part. |
