For industrial 3D optical inspection, the first system installed by Lyncée Tec was dedicated to quality control in the watch industry. An important step has been achieved in 2010 by demonstrating measurement on a convey tray, i.e measurements without stopping the sample, and without any mechanical adjustment of the height of the sample for focalization.

DHM® is currently used for 3D optical inspection in semiconductor, medical technology, watch, and solar industries,  for controlling among others the following features:

• Topography

• Roughness measurement according to ISO standard

• Step height of SiO2 on Si wafers

• Sample’s aesthetic control