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.
MKS/Newport - Franklin, MAMKS/Newport designs and manufactures high performance optical filters and replicated mirrors in the UV, VIS, and NIR. Filters include bandpass, dichroic, edge, fluorescence, neutral density, and notch filters, as well as optomechanical and electro-optical assemblies based on filter technology. Mirrors include retroreflector, aspheric, and spherical.