| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser radar device that has a wide dynamic range, is compact, and can reduce its costs. SOLUTION: A laser radar device is provided with a transmission optical part 11 with a laser generation part 100 for emitting a laser beam to a measurement target and receives the scattered light of the laser beam being scattered from the measurement target. In the laser radar device, the transmission optical part 11 is composed so that it discharges a plurality of laser beams with different intensity. Since the device can measure both close and long distance with a simple photo detector configuration, it can be simplified and at the same time has a wide measurement dynamic range. Especially, the device is effective when it is necessary to use a plurality of photo detectors for measuring the degree of polarization cancellation and simultaneously measuring multiple wavelengths (not limited to three wavelengths).
|
