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The transmittance of coating lens is higher than non-coated lenses, such as camera bar, taking a picture with a pair of AR-coating lenses, it will not have reflectors, the eye can be clearly seen after the photoes washed out. While with out of the Ar-coating lenses, it can only see two white sports. The lens coating also effectively filter out harmful radiation, waterproof fog and so on. Now more and more people, when they buy glasses, they need the lenses to be AR-coating and hard clamshell. There are two kinds of Canada film: one is AR-coating, in which the lens on the front surface coated multilayer different refractive index and thickness of transparent material, the principle of this is using optical interference to reduce extra lens surfaces of reflected light. Lenses with AR-coating, the permeability of light will increases, the perceived of glare will also be reduced if people wearing this kind of glasses lenses, appeared dull or washed out more vivid and bright.
The other one is called hardened film, or hard clamshell, which is mainly used for the Plexiglas. It is generally added on the surface of the lenses, so that before the Plexiglas antiwear enhancement, while the perceived of the light can be strengthened.
If you want to clean this coating lenses, first of all, please clean both of the surface of the lenses by water, then with a clean soft cloth to absorb, be careful, please do not wipe off the lens when it dry. If ordinary glasses lenses can see very clearly that there is no need to purchase a combined with film, if you want to add, Plexiglas AR can be added, or you can add a hard clamshell to glass lenses.
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