Rainbow Research Optics has many products availble.  They provide Cutom Optics, windows, lens, Mirror Substrates, Beamsplitters, Laser Mirrors, Coatings, Wave Plates, Polarizers, Prizims and Optical Filters.  Rainbow Optics strives to keep very high quality standards and delivers products with fast turnaround times. For a free quote visit www.rainbowoptics.com.