A LIDAR device works with a pulsed IR laser diode, which sends out short light pulses.
Some systems are scanning continuously with a mirror and other systems illuminate the whole area at once. The emitted light is reflected from every surface of the obstacles in its path, with a reflection ratio depending on the material and colour. A sensor array detects the returning light, determining the time of flight needed to travel from the light source to the object, and back to the detector. Knowing that the speed of light is 3*108 m/s, this gives the distance of objects. The system can be configured by combining a sensor, such as a PIN-PD, APD, or MPPC, a timer circuit, and a time measurement circuit with a suitable laserdiode or laserdiode array.
Brochures & Technical Information:
» Photodetector for range finder and LIDAR
» Measuring Distance with Light
Products for Short Distance Measurement:
» Distance Image Sensors
Products for Long Distance Measurement
» Avalanche Photodiodes and Arrays
» Multi-Pixel Photon Counter | SiPMs
» Pulsed Laser Diodes