DragonEye Compact Speed LIDAR Operator Manual
DragonEye Technology, LLC / Doc. 30666 Rev. 03
17
Your Lidar may include a user selectable Menu option to use a red
“Dot” reticle instead of the split oval. When selected in the Menu
system, the Dot reticle HUD view will look similar to the illustration
below:
Roadside Setup
When first learning to use the DragonEye Compact Speed LIDAR
TM
, it
is best to select a straight stretch of roadway with a line of sight of
150 metres or more.
Approaching or receding vehicles should be targeted such that your
line of sight through the HUD is as parallel as possible to the path of
the target vehicle. This will minimize the “cosine effect” as described
in Appendix A of this manual. (Note: The cosine effect applies to
both RADAR and LIDAR systems and always results in a slightly
lower than actual reading.) A good rule of thumb for approximately
straight roadways is to target a vehicle at a range which is at least
ten times the operator’s perpendicular distance to the vehicles lane
of travel. For example, if the operator is 9 metres from the vehicle’s
lane of travel, the vehicle should be targeted at 90metres, or greater.
This would result in a measured speed reading which was
approximately 0.5% less than actual.
Red Dot
HUD Aiming
Reticle
