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.
Ohara Corporation - Rancho Santa Margarita, CAPrecision optical glass: strip, blanks, pressings, polished balls, near-UV transmitting i-Line glass, ceramic substrates, CaF2, UV/IR materials, quartz, fused silica (standard/excimer grade), Nanoceram. Ohara CCZ ultralow expansion (excellent CTE uniformity, blank form, to 1.8 m diam). Double-side polished substrates (low surface roughness, excellent flatness).
Chroma Technology Corp. - Bellows Falls, VTManufacturer of optical filters and coatings for many demanding applications such as: biomedical instruments and imaging systems, fluorescence microscopy, aerospace, surveillance, machine vision, industrial inspection such as semiconductors, food and lumber, multispectral imaging, and chemical analysis. Employee-owned.