The new iPhone 12 Pro and 12 Pro Max have LiDAR scanners on the back. What is LiDAR and what can you do with it?LiDAR (short for Light Detection and Ranging) is a sensing technology that uses laser light to measure distance. LiDAR can be used for a variety of purposes, including measuring the distance to objects, mapping terrain, and even detecting objects that are not visible to the naked eye.The new iPhone 12 Pro and 12 Pro Max are the first iPhones to feature LiDAR scanners. LiDAR can be used to improve the performance of AR apps and to take better photos and videos in low-light conditions.