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.
Photonics Spectra - Pittsfield, MAPublisher of Photonics Spectra magazine, an international publication covering the photonics industry: lasers, optics, imaging, sensors and detectors, test and measurement, light sources, fiber optics, spectroscopy, microscopy, materials, coatings, and machine vision. Photonics Spectra is referred to by the largest qualified audience of engineers, designers, researchers, and managers seeking to keep abreast of photonics technology. Subscribe online at www.Photonics.com/subscribe.