Heidenhain Corporation - Schaumburg, ILInternational manufacturer of precision measurement and control equipment. This technology is utilized within precision motion control and machining systems worldwide. Products include encoders (linear, angle, rotary), length gauges, numerical controls, and touch probes for demanding positioning tasks.
Ohara Corporation, Eastern Office - Branchburg, NJManufactures precision optical glasses: strip/slab, blanks, fine gobs, polished ball lenses, near-UV transmitting i-Line glass, ceramic substrates, CaF2, UV/IR materials, quartz, fused silica (std./excimer grade). Ohara CCZ ultralow expansion (excellent CTE; large size). Nanoceram. Double-side polished substrates (low surface roughness, excellent flatness).