Velodyne VLS-128 - Beam Divergence; Table F-1 VLS-128 Beam Divergence

Photo of sensor laser pattern reflecting off of a flat target a short distance away.
F.2.3 Beam Divergence
As a laser pulse propagates outward from the sensor the cross-section of the laser beam describing the path of the pulse
gradually, steadily grows larger. The angular measure of this increase in beam path diameter is called Beam Divergence.
VLS-128 beam divergence on the horizontal axis (i.e. along the direction of the laser scan) differs from beam divergence
on the vertical axis (transverse to the scan) by roughly a factor of two.
Horizontal Beam Divergence Vertical Beam Divergence
3.0 mrad (0.18 deg) 1.5 mrad (0.09 deg)
Table F-1 VLS-128 Beam Divergence
Appendix F • Laser Pulse 115
DRAFT