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Atomic Aquatics already uses UltraClear glass in their mask lenses so what is the need for an extra coating? ARC (Anti-Reflective Coating) technology was developed to reduce reflected light and actually increase the amount of available light transmitted to a diver’s eyes. The end result is a greatly improved transmission of 98% of available light, compared to a loss of more than 14% of light with standard green "float" glass used on the majority of masks on the market.
Anti-Reflective Coatings or “ARC” is a multi-layer metal oxide coating process applied to both sides of the UltraClear lenses. This allows more light to enter the mask by reducing light reflections off the inside and outside surface of the lens. The metal oxide coating is only a few microns thick.
Between 4-14% of light can be reflected back or “lost” by the standard “green float glass” mask lenses. ARC technology lenses are especially important for SCUBA divers underwater, where available light is quickly absorbed by the surrounding water.