What is the polarisers According to the light is polarisers polarization from manufacturing.We know that, when the sun shines on the surface or in pavement, direct stimulate an eye, make eye feel dazzling, fatigue, not long lasting.Especially when you are driving a car, outdoor recreation, not only affect our work and entertainment, even affect our mood and dangerous object-image judgment,Long suffered direct sunlight, also can cause vision of a sharp decline, myopia, farsightedness, astigmatism or cataract, etc.Polarisers effects is effectively exclude and filtering the scattering light beams.In the light of the right eye vision image through optical input, make the vision clear.As the shutter shade, light is adjusted to the principle of dependent and natural light to enter indoor, soft and not dazzling scenery look.
The ideal sunglasses should have the following important condition Must be able to filter out in the sun, 99% ultraviolet light reaches the international standard filter performance requirements;Effectively stop light function;Lens bending design with standard, optical arc ship-swaying optical and video;Eyes, excellent material frame frame, optical function design, safe and comfortable feeling after wearing.
The main function of a sunglasses, prevent ultraviolet light shade is such harmful rays, too much into the eye damage.If in the summer, with sunglasses, can reduce the first: eyes in bright sunlight cycloplegic recuperate in endeavoring to take, eye to see objects, and the smooth line is the most warm ground at eye,Second: wear sunglasses to block is not only harmful rays.At the same time, in the windy weather, it also can avoid dust particles particles into people’s eyes.This in a certain level, also became the best eyes haven.According to experts, since 1996, the more frequently sunspot activity, uv damage to human body is more and more big.Especially in qinghai, Tibet plateau region because sunlight as long, so here is the most vulnerable to ultraviolet harm.Therefore, the life of the people in these areas should take special sunglasses.
