Why do we need polarized glasses?

We all have this experience: facing strong sunlight always makes it difficult to open our eyes, which increases the danger especially when driving. In order to reduce the occurrence of accidents, a type of polarized glasses has been developed. Wearing these glasses can dim the strong light facing you and make the front brighter. At present, polarized glasses are used more and more and are deeply loved by everyone.

Polarized sunglasses have lenses that darken when the sun's rays hit them. When the lighting faded, it became bright again. This is possible because of the silver halide crystals. Under normal circumstances, it keeps the lens perfectly transparent. Under the irradiation of sunlight, the silver in the crystals is separated, and the free silver forms small aggregates inside the lens.

Polarized sunglasses provide another mechanism for protecting your eyes. The reflected light from the asphalt road is a relatively special polarized light. The difference between this reflected light and light directly from the sun or any artificial light source lies in the problem of order. Polarized light is composed of waves that vibrate in one direction, while ordinary light is composed of waves that vibrate in non-directional directions. This is like a group of people walking around in disorder and a group of soldiers marching in an orderly manner, forming a sharp contrast. Generally speaking, reflected light is an orderly light. AIKUSTE polarized lenses are particularly effective at blocking this light because of their filtering properties. This type of lens only allows polarized waves vibrating in a certain direction to pass through, just like "combing" the light.

Principle example: Friends who drive should be able to empathize with the problem of road reflection. Using polarized sunglasses can reduce light transmission because it does not allow light waves that vibrate parallel to the road to pass through. In fact, the long molecules of the filter layer are oriented horizontally and can absorb horizontally polarized light. In this way, most of the reflected light is eliminated without reducing the overall illumination of the surrounding environment.