What Is The Material Of Sunglasses Lens?
1. Plastic lenses
UV400 resin lenses
This is the material that many sunglasses brands like to use. Lightweight and unbreakable is its most obvious feature. The UV protection function of plastic lenses without any treatment is obviously better than that of glass lenses, and the color processing of plastic lenses is also easier. The disadvantage of plastic lenses is its wear resistance, easy to scratch, the lens is also easy to deformation when it is impacted, so the maintenance of it should be more careful.
At present, there are mainly three kinds of plastic lens materials, namely resin lens, PC lens, acrylic lens,
2. Glass lenses
Glass lens
Glass lenses are what we often come into contact with. The most prominent advantage of glass lenses is that their optical properties are very stable, which is a consistent advantage of glass lenses. It is also the same when applied to frame glasses. The disadvantage of glass lens is easy to break, broken easy to cause damage to the eyes. At present, the newly developed reinforced glass lens, the performance is much more prominent than ordinary glass lens, is also regarded as a kind of safety lens.
3. Polarized lenses
Polarized lens
This is a lens used in polarized sunglasses. It uses the polarization principle of light to block glare from all sides outside the lens, so that the vision is clearer and the driving is safer.
4. Color-changing lenses
Color-changing lens
Compared with the sensitive lens, the color of the lens will change accordingly due to the change of light, so that the eyes can adapt to different environments. Under strong light, the color of the discolored lens will be deepened, and under light, the color of the lens will automatically become lighter. These lenses have already been used in sunglasses for myopia, and they are considered to be the most convenient and beautiful form of sunglasses for myopia, more popular than clip-on lenses.
