The Coating on the optical element is very important, which can improve the transmission, high reflection, etc. Foctek offers all kinds of anti-reflective (AR coating), high reflective (HR Coating) and partial reflective (PR Coating) coating according to customer's requirement. Foctek produces a wide variety of coatings from simple single layer AR coatings using MgF2 and mirror coatings to complex multi-layer dielectric coating. Typical types of dielectric coatings are BBAR, V-coatings, and Dual wavelength coatings.