Hard Coating

No eyeglass lens material is scratch-proof. However, a lens that is treated front and rear with a hard coating does become more resistant to scratching. Nowadays, most types of plastic lenses, including polycarbonate and traditional plastic materials, have built-in scratch-resistant coatings. 5-8H in lens center, and 4 Times harder than normal resin lens after hard coating.

AR Coating

Anti-reflection coatings is used as transmission-enhancing coatings. To improve both the vision through the lenses and the appearance of the glasses, an anti-reflective coating (AR coating) is applied. They consist of several layers of metal oxides applied to the front and back lens surfaces. Each layer is scientifically calculated to block reflected light. The result is that you'll see a reduction in glare, annoying reflections and halos around lights. This is a great safety benefit when you're driving at night. Also, anti-reflective coating reduces both internal and external reflections on the lenses themselves, creating a nicer cosmetic appearance. Internal reflections appear as rings that make lenses look thick. External reflections mask your eyes from a clear, complete view when someone is looking at you. So with an anti-reflective coating, eyes look more natural.

EMI Coating

The Anti-EMI coating is a revolutionary lens coating that is developed to cut EM emissions originating devices such as computer monitors, microwave ovens, and protect your eyes from harmful waves.

UV Coating

Another lens coating treatment is (UV) protection. An UV coating is simple and quick to apply to most plastic eyeglass lenses, and it does not change the appearance of the lenses at all. The exception is polycarbonate lenses, which don't need anti-UV treatment because it is an inherent property of the material.