ELI5: Explain Like I'm 5

Structured-light 3D scanner

A structured-light 3D scanner is a type of 3D scanner that uses light to digitize an object. It works by projecting a known pattern of light onto an object and measuring the way that light is reflected back from the object's surface. The way that the light interacts with the surface can then be used to calculate the 3D shape of the object.