For the best in optical equipment and excellent customer service, contact Rainbow Research Optics. Our coating equipment includes resistance heated and electron beam evaporation sources. This will give a high quality optical filter that you need. Rainbow Research Optics offers many coatings including narrow-band and broad-band AR coating, full and partial reflectors, filters, as well as beam splitter coatings. Visit today to learn more and receive a free quote at www.rainbowoptics.com.