LiDAR is an essential enabling tech for dozens of applications in robots. To build 3D maps sensors are used to collect pulsed light reflected off a target. The return time and wavelength changes allow 3D imaging of objects. LiDAR's prohibitive costs and complexities affect their quality and limit their use in 3D applications. At MIT, researchers are developing LiDAR chips on 300-mm wafers, which they believe could be manufactured for as little as $10. While existing LiDAR from suppliers like Velodyne and others rely on mechanical spinning of arrays with up to 64 lasers, this new device lacks moving parts, making it potentially more robust and faster.