| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser distance-measuring device capable of obtaining exact distance data, without being affected by the temperature. SOLUTION: By providing a photodiode for reception 21 for converting received laser light LR to reception signal which is an electrical signal, a distance detecting means detecting the distance to a target T, based on a reference signal of transmission laser light LT and the reception signal of the received laser light LR, a photodiode for compensation 28 for converting the transmission laser light LT to signal for compensation which is an electrical signal; and a switch 30 for switching between the input from the photodiode for reception 21 and the input from the photodiode for compensation 28 to the distance detecting means 13, the error of the distance data caused by temperature effect is resolved, and simultaneously, small-sizing and the like are realized. COPYRIGHT: (C)2005,JPO&NCIPI
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