Rainbow Research Optics has over 15 years experience, as Custom Optics Specialist. This is the kind of experience you can count on. Rainbow Research Optics provides optics with tremendous precision and coatings. They offer spherical lenses, mirrors, windows, and prisms, as well as wave plates, Beam splitter cubes, high damage coatings, and thin film polarizers. Visit today at www.rainbowoptics.com for more information or questions.