Cycle of the four seasons, spring, summer will also be followed, the polarized sunglasses also became popular, people go out for an outing or go out in the hot summer people, a pair of polarized sunglasses also became indispensable sheet is tasted, also there is a problem at the same time, the sun glasses have a lot of color, is rich and colorful, don't look down upon these color, don't wrong thought just for the sake of beautiful color, but different color function is different, here we share the function of color: grey lens: for any chromatography can balance absorption, so watch the scenery will dim, but do not have clear off color, show your natural feeling, belong to the neuter color.
Blue grey lens: similar to grey lens, both belong to the neutral lenses, but darker, visible light absorption rate is higher.
Dark brown lens, filter out a lot of blue light, which can improve visual contrast and clarity, under the condition of air pollution is serious, or foggy wearing effect is better.
: green lens in absorb light at the same time, can increase to reach big eyes of green light, so there is the feeling of cool and comfortable, suitable for use eye fatigue.
Mercury glass lens: the lens surface mirror coating with high density, such glasses can inhale more reflect visible light, suitable for outdoor sports.
Yellow glasses: strictly speaking, this kind of lens does not belong to the sun glasses, because it almost does not reduce the visible light, but in the foggy and at dusk, the yellow lenses can improve contrast, provide more accurate of the video.
So, yellow glass lens, also known as night-vision goggles, there are also many young people wearing yellow sun glasses used as outdoor sports decoration.
Shallow blue, shallow pink glasses: shallow blue, shallow pink sunglasses also is more practical than decorative lenses.
Lens color depth is only for visible light absorption performance, has nothing to do with uv resistance, because uv to visible light.
Instead, resistance to ultraviolet radiation protection glasses more depends on the lens material, rather than the color depth, some resin lens colorless transparent, but still 100% uv radiation.
And don't showed, must go to normal optical shop to buy glasses oh, quality can be guaranteed, after sales service is also be more thoughtful, so that to better protect your eyes, avoid ultraviolet harm.