In summer, the harmful light strong sunlight from not only burn the eyes, it will make a clouding of the lens of the eye, is arch-criminal senile cataract, how to choose a qualified Ray Ban sunglasses outlet are very important.
Wearing sunglasses is not only to protect the harmful light, but also in the windy weather, it can prevent dust particles into the eyes. In addition, in recent years, sunspot activity is more and more frequent, ultraviolet rays cause more and more strong, especially in China’s Qinghai and Tibet plateau area due to long hours of sunshine, so here is the most vulnerable to UV damage, so people living in these areas should wear cheap Oakleys.
Different lenses have different functions. Currently on the market, sunglasses are dazzling, how to identify their functions and advantages and disadvantages? When choosing Ray Ban sunglasses cheap, we should not only consider the appearance, the most fundamental is to guarantee the safety and the vision of the wearer is not damaged, reduces glare, clear vision deformation, anti ultraviolet radiation, to identify the color distortion, accurate identification of traffic lights etc..
Color lens, also known as the lens, that is, in the lens production process, coupled with chemical substances, so that the lens color, in order to absorb specific wavelengths of light. This is the most common type of sunglasses lenses.
The effect of the same color and color lens lens, only made in different ways, it is the color painted on the surface of the lens, color above the deep down and gradually shallow. Generally used for a degree of solar lens.
Polarized lens is to filter the sun in the water, land or snow on the parallel direction of the stimulation of the light, the lens to add a vertical special coating. Ray Ban sunglasses sale are suitable for outdoor sports, such as sea sports, skiing or fishing.
Photochromic lens, the lens to add the right amount of chemical substances, so that the original transparent colorless lens, in the case of strong ultraviolet radiation, it will become a colored lens, also known as “photosensitive lens”.
The utility model is mainly used for protecting the ultraviolet ray from the eye, and is suitable for indoor and outdoor use, especially in the area of high altitude and strong ultraviolet radiation.
In addition to the scorching summer, a winter fake Ray Ban sunglasses is also very necessary, especially snow weather, in front of white, look for a long time, the eyes are very uncomfortable, into the dark region is difficult to adapt to, we often refer to the “Snowblind” phenomenon.