Hamamatsu Corporation - Bridgewater, NJImporter and distributor of photonics components and subsystems for use in instrumentation. Products include photomultiplier tubes, solid-state photodetectors, IR detectors, image sensors, scientific cameras, light sources, and x-ray solutions.
ECOPTIK (Changchun) Ltd. - Changchun, ChinaCustom optics, such as spherical lenses, dome lenses, prisms, windows, filters, cylindrical lenses, aspherical lenses, mirrors, beamsplitters, optical assemblies. Also custom lens design and optical systems design.
Luxottica / Exciton - Lockbourne, OHManufacture and research of high performance dyes. Our expertise includes narrow-band visible and infrared absorber dyes for optical filters, as well as fluorescent, and the closely-related laser dyes. Since early 2017 Exciton has been part of Luxottica, a leader in the design, manufacture, and distribution of fashion, luxury, and sports eyewear.