Evaporated Coatings Inc. - Willow Grove, PAOptical coatings for precision glass and polymer optics, fiber optic devices, crystals, and semiconductors. Designs include optical filters, high power AR and HR laser mirrors, ultralow antireflection, enhanced mirrors, beamsplitters, transparent conductive coatings, LWP/SWP filters, antistatic, attenuation, and custom designs. ISO 9001:2015 certified.
National Photocolor Corporation - Mamaroneck, NYManufacturer of thin-film pellicles for use as beamsplitters, beam combiners, attenuators, filters, and optical windows. Standard items, uncoated and coated, are available from inventory; special frames, coatings, flatness, transmission and documentation are available for custom applications.