| 摘要 |
PROBLEM TO BE SOLVED: To provide a range finder capable of preventing false detection by suppressing noise caused by outside light.SOLUTION: A range finder 10 includes: a light emission part 31 for emitting light to a measured object 20; light reception parts 32a, 32b for receiving the light reflected by the measured object 20; and a light interception part 22 for intercepting outside light. The light interception part 22 intercepts an optical path 40a between the light emission part 31 and the measured object 20, an optical path 40b between the measured object 20 and the light reception part 32a, and an optical path 40c between the measured object 20 and the light reception part 32b from the outside light. |
