| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser radar apparatus capable of three-dimensional detection in which a scanning range expands not only in a transverse direction but also in a longitudinal direction (height direction), and capable of easily securing a large height range of a detection area even in the vicinity of the apparatus.SOLUTION: A laser radar apparatus 1 comprises a rotating reflection device 7, which includes a rotational structure 40 and a motor 50 for rotationally driving the rotational structure 40. The rotational structure 40 has a plurality of deflection parts 41, 42 and 43 that are arranged so as to be displaced from each other in a circumferential direction around a rotation axis 42a, and that are arranged so as to be displaced from each other in a height direction. Further, the deflection parts 41, 42 and 43 sequentially deflect a laser beam L1 through a light projection path of the laser beam L1 with the rotation of the rotational structure 40. This configuration allows the laser beam to be emitted at a plurality of height levels by using the deflection parts having different height levels as base points, to secure a large height range of a detection area even in the vicinity of the apparatus. |
