National Aperture Inc. - Salem, NHManufactures precision apertures and miniature micropositioning components. Apertures: pinholes, air slits, and patterns on foils, exotic materials, and reflective surfaces. Micropositioning products: miniature motorized linear and rotary translation stages, PC-based servo-control systems, and light-duty servo amplifiers.
SORL/Space Optics Research Labs LLC - Merrimack, NHManufactures stock and custom off-axis parabolic mirrors. Flat, spherical, and aspheric mirrors in ceramic, glass and metal, precision mirror mounts; reflective beam expanders, collimators, FLIR test stations, lidar telescopes; Fourier transform systems, IR lens assemblies and a LUPI-IIA interferometer. Engineering, design, and field services.
Spectrogon US Inc. - Mountain Lakes, NJDesigner and manufacturer of interference filters: narrow and broad bandpass, long- and shortwave, ND filters, atmospheric windows, AR and metallic coatings. Holographic diffraction gratings: plano, concave and blazed, pulse compression/stretcher gratings. WDM and telecom applications include diode laser tuning gratings and network communications gratings.