Application Note

LIDAR Guns, Accuracy, and Speeding Tickets

Source: Ophir Photonics

By Dan Ford, Ophir-Spiricon, LLC

Anyone who has driven a vehicle has encountered a Light Detection and Ranging (LIDAR) system in action. Some of you have even found out how much it can cost in terms of speeding fines! Let’s take a closer look behind the scenes. How do we know the detector is working?

In this application, the LIDAR device sends out a 130 μW 904 nm beam, the beam is produced by three light emitting diodes (LEDs). Once the light leaves the device and travels down range towards the target the light is scattered.