Then because ray ban glasses has the polarized light nature, because therefore may be cut off completely scatters, the inflection, the reflection and so on each kind of factor creates dazzling. Simultaneously also can be cut off completely to the human eye harmful ultraviolet light, causes the human when the glare the long-term activity, eye not easy weary, achieves the true protection the function, moreover can let visible the thing be clearer three-dimensionally. Therefore, Ray ban sunglasses suits time extremely driving and the outdoors activity wears.
The lens number of degree should satisfy to the plain glass lens request, and should not the influential vision optics defect. The simple distinction method may put in cheap ray bans at present, penetrates the lens to observe the distant place goal, like the window frame or the doorframe and so on, the Ray ban sunglasses about the shuttle, the goal should not have again swinging and the wave-shape distortion.
Also may observe the ray ban 3025 surface under the daylight lamp the tube phantom, moves Ray ban sunglasses to cause the tube phantom to appear in the lens different spot, the tube phantom does not distort for best. At present in market Ray ban sunglasses, majority of is uses thickness is the 0.7mm resin polarized light lens, because the lens are thin, is very easy in the assembly to have the distortion, selects and purchases when should pay attention specially.
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