| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser radar device considering change of light that acts as a noise light.SOLUTION: The laser radar comprises N numbers of light source/filter pairs, switching means for switching these light source/filter pairs, and M numbers of distance measurement light receiving elements for distance measurement. Each of the light source/filter pairs comprises one laser source and one light receiving filter, each of the laser sources different from each other in emission wavelength, each of the light receiving filters guiding only a laser beam having the emission wavelength of the laser source that forms the light source/filter pair with the light receiving filter and an emission wavelength in a region in the vicinity thereof, to the one distance measurement light receiving element as a return laser beam. One of the light source/filter pairs uses a laser source 101 that has an emission wavelength in which relative intensity in a sunlight spectrum is 20% or lower, and the light source/filter pairs other than the one light source/filter pair each use a laser source 102 that has an emission wavelength in which a relative intensity in an artificial light spectrum under a distance measurement environment is 40% or lower. |
