Mirrored sunglasses.

Mirrored sunglasses

Today, manufacturers offer a huge selection of optical lenses with various protective coatings that can be multifunctional and multi-layered. So, sunglasses with mirror effect designed to eliminate glare - at sea or in the snowy mountains. Lens, more shaded in the upper part with a smooth transition from top to bottom (gradient lens), will be good when you need protection only from the upper bright sunlight. But this option may cause fatigue the eye, it is desirable to have a uniform darkening of the glasses. Sunglasses with polarized lenses successfully neutralize the blinding brilliance, increasing the contrast and sharpness of perception, reducing eye fatigue, so they are irreplaceable for drivers and fishermen.

Antireflection coating makes the lens as transparent as possible, thus reducing the load on the eye and removing eye strain when wearing sunglasses. Strengthening coatings protect plastic lenses from minor scratches, increasing the operation life of the glasses. Hydrophobic dirt- and water repellent coating quickly makes lens transparent after dewing.

Watch for traffic lights.

Not any sunglasses suit for driving. The minimum amount of light, passing through the lens in the daytime must be at least 8%, and its maximum of absorption, respectively, may not exceed 92%. Thereof isn't recommended to use a very dark glasses with lenses of category 4 while driving. The lenses of saturated colors - red, green or blue - can disrupt the perception of signal colors of vehicles control, even distort the traffic signal, and therefore also not suitable for drivers. At night, the most safely to use colorless lenses with antireflective and anti-blinding coatings. It is best protects the driver's eyes a glasses with traditional browns and grays, and yellow (honey, golden or pale lemon). The orange sunglasses have most pronounced anti-blinding effect.