The lidar system David demonstrated has 32 infrared beams that can see 360 degrees from the spinning sensor and 10 degrees up and 30 degrees down for a 40 degree field of view. These sensors are used in self-driving cars and mapping applications.
Velodyne Lidar sensors are not available to the public and, as David said, would cost as much as the car does right now. Look for Velodyne Lidar sensors to become part of future consumer products.
For more information see VelodyneLidar.com
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