3D Measurement

The basic principle of 3D measurement is a technique known as laser triangulation. Laser triangulation is a commonly used non-contact technique to measure the distance from a sensor to a surface. In the 1970's, LMI companies were some of the first to develop and market laser triangulation sensors for a variety of industrial applications.

The principles of triangulation are used with diverse forms of structured laser light patterns, such as arrangement of laser spots and lines projected onto a measured target.  Digital image of these projected laser patterns are subsequently translated into actual dimensional measurements representing a 3D model of the target.