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http://www.lidar.com
Lidar

LIDAR is an acronym for LIght Detection And Ranging.

What can you do with LIDAR?
Measure distance
Measure speed
Measure rotation
Measure chemical composition and concentration

of a remote target where the target can be a clearly defined object, such as a vehicle, or a diffuse object such as a smoke plume or clouds

http://www.lidar.com/