Polarizer is expensive or not, how much is it?

Polarizer is made according to the principle of polarization of the light, is used to eliminate and filter out the scattering light beam, can make the light in eyes on track through optical axis of the visual image, make the vision clear. As we know, when the sun shines on the road or on the water, direct stimulation of the eyes, make the eye feel dazzling, fatigue, can not be sustained. Especially when you are driving a car, outdoor recreational activities, not only affects our work and entertainment, and even affect our judgment on the object and dangerous; Withstand direct sunlight for a long time, can also lead to vision fell sharply, the formation of myopia, hyperopia, astigmatism or cataract, etc. Sunglasses factory 9803 polarized sunglasses polarized lens by thin layers of resin material synthesis. Each layer has different effect. Polarized layer for the middle layer, and its principle as shutters, can filter out stray reflect light. The second and third layer can filter 99. 9% of harmful ultra-violet rays and reduce the intensity of light, the function with the ordinary sun glasses. Polarized lenses of the fourth and fifth floor is for shock, the lens is not easy to burst; Layer 6 and 7 of the strengthen treatment, making the lens is not easy to wear and tear. Polarizer can filter nor harmful light eye protection. So how much is the polarizer, is it expensive? In general, there are degrees of polarizer myopia polarizer price is better than no prescription is flat to high prices, different brand, of course, certainly there will be a difference in price between different sales channels, myopia polarizer sunglasses factory 299 yuan/deputy, matt was below 150 dollars per pair, please login to the sunglass factory website or consulting glasses sunglasses factory network online customer service.
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