Rainbow Research Optics offers a wide variety of standard coatings, as well as custom coatings.  They offer narrow-band and broad-band AR coatings, full and partial reflectors, filters, as well as beam splitter coatings.  You can request coatings as coated or non-coated, or standard or custom coating design. For more information on Rainbow Research Optics coatings call 303-371-300 and visit online at www.rainbowoptics.com.