Machine Vision & Inspection
Vision measuring machine with optical vision head
By Alison Dunn
Mitutoyo Canada Inc. recently released the new Quick Vision WLI vision measuring machine complete with optical vision head. The Quick Vision WLI also incorporates a white light interferometer (WLI) head. Together these heads enable high accuracy performance of non-contact vision plus non-contact 3D measurement of high aspect-ratio minute form functions in a single machine – eliminating the need to move a workpiece from one type of machine to another. The Quick Vision WLI interferometer head splits a beam of white light in two; one beam goes towards a reference mirror and the other beam goes to the workpiece. As the reference objective is moved along the Z-axis, a white “interference ring” is observed on the focus point; analysis of this ring makes it possible to determine the 3D shape of the feature under observation.