[christosxo]

Originally Posted by C55

In this case, it is not the power or light output at closer ranges that's at issue here, although as you get closer to the LIDAR source, the LI's IR beam's width does indeed narrow, but rather it's a matter of pure light physics. Imagine, if you will, your using a flashlight to look down a long darkened hallway. Along the hallway as you are walking while projecting the flashlight to see down it, you occasionally pass behind a stud wall. Every time you pass another of the studs, for that brief moment in time, the light is blocked from projecting down the hallway by that stud. Same theory applies here, those vanes or portions of the grill block the IR beams coming from the sensor, like the stud, from painting the roadway hence allowing the LIDAR to no longer see the jamming signal but rather receive a sufficient quantity of it's own IR beam return and achieve P/T! In simple English, your obstructing the LI at that particular spot in relation to the LIDAR guns position just like the stud in the analogy.

The lesson here: "Stealth the car, NOT the install!"

Cliff - C55

Perfect explanation man