4D Technology Corporation - Tucson, AZDesigns and manufactures dynamic laser interferometers and optical profilers, and surface defect gauges. Applications include precision machined surfaces, optics, astronomy, aerospace, space-based telescopes, flexible electronics, automotive, and in-line production measurement.
Universal Photonics Inc. - Central Islip, NYLapping and polishing consumables and machinery for glass, plastic, crystals, IR, semiconductor, electro, laser, and fiber optics. Microcellular foam elastomer pads, compounds, ultrapure alumina, colloidal silica, diamond powder/slurries; water-based, nanosize, alpha-alumina; optical blocking, synthetic pitch, double-sided polishers, and centrifuges.