T he LiDAR (Light Detection and Ranging) sensor used by the rear cameras of the iPad Pro and recent iPhones is a key part of Apple’s grand plans for the future of AR and VR technology.
The LiDAR sensor helps to improve camera performance in low-light conditions, but it can also calculate depth within an image or scene. This is similar to the TrueDepth technology used with the front-facing camera to map the contours of your face so that you can use Face ID to unlock the iPad Pro or an iPhone.