Polarized glasses provide another mechanism to protect the eyes. The reflected light from the asphalt road is relatively special polarized light.The difference between this reflected light and the light directly from the sun or any artificial light source lies in the problem of order.
Polarized light is formed by waves that vibrate in one direction, while ordinary light is formed by waves that vibrate non-directionally. This is like a group of people walking in disorder and a group of soldiers marching in order. , Formed a clear contrast. Generally speaking, reflected light is an orderly light.
Polarizing lenses are particularly effective in blocking this light because of its filtering properties. This kind of lens allows only polarized waves that vibrate in a certain direction to pass through, just like “combing” light. For road reflection problems, the use of polarized glasses can reduce light transmission, because it does not let light waves that vibrate parallel to the road pass. In fact, the long molecules of the filter layer are oriented in the horizontal direction and can absorb horizontally polarized light.
In this way, most of the reflected light is eliminated, and the overall illuminance of the surrounding environment is not reduced.
Post time: Nov-18-2021