| 摘要 |
PROBLEM TO BE SOLVED: To provide a light projection device for an optical radar capable of adjusting easily scanning amplitude and an optical axis of a projection optical axis, and acquiring high adjustment accuracy. SOLUTION: A projection direction of a beam radiated from a laser diode 31 is set by a projection lens 37. The position of the projection lens 37 is detected by position detectors 43a, 43b. The projection direction of the beam is converted into a position of the projection lens 37 by a scanner control part 25. Driving of an actuator 40 is controlled by the scanner control part 25 based on a target position of the projection lens 37 acquired by the scanner control part 25 and on a detected position of the projection lens 37 detected by the position detectors 43a, 43b. A deviation of the projection direction of the light projection device in a specific target projection direction of the beam is stored as a correction value in a memory 53 in the scanner control part 25, corrected by the correction value, and converted into a position of the projection lens 37. COPYRIGHT: (C)2008,JPO&INPIT
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