Sill Optics GmbH & Co. KG Germany aspheric optics, beam expanders, f-theta lenses, laser optics, lens design, optical engineering, and telecentric lenses
Opto Engineering S.p.A. Italy industrial optics, liquid lenses, machine vision, optical engineering, optical metrology, swir optics, and telecentric lenses
DIOPTIC GmbH Germany computer-generated holograms, diffractive optics, infrared lenses, metrology, optical design, photonics, surface inspection, and telecentric lenses
