What are the characteristics of polarizer lens?
Although polarized lenses can filter out a lot of irregular light interference and avoid glare, glare, etc., if the curvature of the lens itself cannot be in the optical standard refractive state, the polarizing effect will be weakened, affecting the authenticity of the image, and poor durability .
After the natural light is filtered by the polarized lens, it can only let the light in one direction pass, so that the eyes can be well protected from the interference of the messy light [3]. The general polarized sunglasses on the market are made of fiber sandwiched with a polarizing film. It is different from optical glass polarized sunglasses because of its soft texture and unstable arc. After the lens is fitted with the frame, it is difficult for the lens to reach the optical refractive standard, and the image is loose and deformed. Due to the instability of the arc, the lens is deformed, which directly leads to the poor clarity of the transparent image and the distortion of the image, which can not achieve the normal visual effect. And the surface is easy to be scratched, abraded and not durable.
The polarized lens is formed by pressing multiple layers of thin resin material. Each layer has a different function. The middle layer is the polarizing layer. Its principle is like a blind, which can filter out stray reflected light. The second and third layers can filter 99.9% of harmful ultraviolet rays and reduce the intensity of light. The function is no different from ordinary sunglasses. The fourth and fifth layers of polarized lenses are anti-impact layers to make the lenses difficult to break; the sixth and seventh layers are strengthened to make the lenses difficult to wear. The polarizer can filter out harmful light to protect the eyes.
