| 摘要 |
<P>PROBLEM TO BE SOLVED: To avoid errors due to a cross talk in a wide-field reception system. <P>SOLUTION: Laser distance measuring devices 1 and 2 each include: laser beam transmission means (a laser device 11, a modulator 12 and a scanner 13) for modulating a laser beam by a specific modulation signal and scanning the modulated beam towards an object while being controlled by a control device 3; scattered light reception means (a reception lens 15 and a light-receiving device 16) for receiving scattered light from the object and converting it into an electric signal; and a distance calculation device 17 for calculating a distance to the object on the basis of a time difference or phase difference between the electric signal and the modulation signal. The control device 3 synchronizes a specific factor of each laser beam by the laser distance measuring devices 1 and 2 so as to avoid overlapping of the laser beams or specify an overlapped area. <P>COPYRIGHT: (C)2013,JPO&INPIT |
