4D Technology Corporation - Tucson, AZDesigns and manufactures dynamic laser interferometers and optical profilers, and surface defect gauges. Applications include precision machined surfaces, optics, astronomy, aerospace, space-based telescopes, flexible electronics, automotive, and in-line production measurement.
Photonics Media - Pittsfield, MAPublisher of Photonics Spectra, BioPhotonics, and Vision Spectra magazines (print and digital); the Photonics Marketplace featuring the Buyers' Guide and Handbook, (online and in print), ProdSpec, Career Center, and Dictionary; and Photonics.com - with online versions of all our publications, daily news, feature articles, webinars, videos, whitepapers, subscriptions, tradeshow coverage, a bookstore, the All Things Photonics Podcast, and more. Organizer of Photonics Spectra online conferences throughout the year.