ARC Lens Technology elevates UltraClear to a higher level. Atomic Aquatics developed ARC (Anti-Reflective Coating) technology to reduce reflected light and actually increase the amount of available light transmitted to a diver’s eyes. Anti-Reflective Coatings or “ARC” is a multi-layer metal oxide coating process applied to both sides of the UltraClear lenses. The result is a greatly improved 98% light transmission.