Lasers for machine vision - SICK
Machine vision technology gives machines the gift of sight, replacing or complementing manual inspection tasks by using digital cameras and image processing.
Among other technologies, 3D technology in particular is suitable for analyzing volume, shape or 3D position of objects, but also for detection of parts and defects that are low contrast, but have a detectable height difference, thus, enabling new applications.
Laser triangulation uses a laser line and a camera to collect height profiles across the object. The profiles are put together to create a 3D image while the object is moving.