LASER RADAR DEVICE

PROBLEM TO BE SOLVED: To provide a laser radar device capable of accurately detecting an object in a monitoring range even when the monitoring range is a long distance range and a range with a large difference in the depth.SOLUTION: A laser radar device includes: a light projecting section 11 for projecting a laser beam Li; a vertical scanner 12 for causing the laser beam Li to scan in a vertical direction V; a horizontal scanner 13 for causing the laser beam Li to scan in a horizontal direction H; a light receiving section 14 that optically receives reflected light Lr of the laser beam Li and transmits light reception information d4; a distance operating section 15 for calculating a distance Lp of an object M from the light reception information d4; a controller 16 for controlling the light projecting section 11, the vertical scanner 12 and the horizontal scanner 13; and an intensity adjusting filter 17 for adjusting a transmissivity δ of the laser beam Li in response to a long/short distance in a monitoring range S. The intensity adjusting filter 17 is configured so as to increase the transmissivity δ of the laser beam Li irradiated at a long distance and decrease the transmissivity δ of the laser beam Li irradiated at a short distance.