LiDAR technology has been around for some time now, and today, it is widely used, for example, in autonomous cars. The latest iPhone models - iPhone 12 Pro and iPhone Pro Max - are using it as well. If you have one of these two models, you might have noticed a black dot near the camera lens - this is the LiDAR sensor. But what is LiDAR? How does it work and is it worth it? The present article is an introduction to LiDAR technology, so if you want to learn what it is about, then keep reading!