| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser range finder which is small in size and can measure the distance to a distant object.SOLUTION: A laser range finder 1 according to the present invention, includes: a light source 10; a scanner mirror 20 scanning a laser beam from the light source 10 by rocking around a rocking shaft J extending in a predetermined direction; a first condenser lens 30 provided on an optical path of a reflecting light from an object 2, which collects the reflecting light to the scanner mirror 20; a second condenser lens 40 provided on an optical path of the reflecting light collected by the first condenser lens 30, reflected from the scanner mirror 20, which collects the reflecting light from the scanner mirror 20; and a light receiving element 70 for receiving the second reflecting light collected by the second condenser lens 40. The first and second condenser lenses 30 and 40 are located at a position off an optical path of the laser beam output from the light source 10 and emitted to the outside of the laser range finder 1.SELECTED DRAWING: Figure 1 |
