Why are Polarized Sunglasses More Comfortable and Softer than Regular Sunglasses？
Sunglasses' polarizing function blocks the glare from the sun, which in turn protects the eyes from UV damage.It's all thanks to a metal powder filter installation that combs the messy light into the right light as it comes in, so the light entering the eye becomes softer.
Polarizing sunglasses selectively absorb the local wavelengths that make up the sun's rays because they use very fine metallic powders (iron, copper, nickel, etc.).In fact, when light hits the lens, it is subtracted by a process called elimination intervention.That is, when certain wavelengths of light (UVA, UVB, and sometimes infrared) pass through the lens, they cancel each other out on the inside of the lens, toward the eye.The overlapping of the waves that make up light is not an occasional phenomenon: when the crest of one wave concurs with the troughs of its nearest neighbour, it invites cancellation.The cancelling effect depends on the refractive index of the lens, the level at which light diverges as it passes through different substances from the air, and also on the thickness of the lens.
Generally speaking, the thickness of the lens does not vary much, and the refractive coefficient of the lens varies according to the chemical composition.
Polarised sunglasses provide another mechanism for maintaining your eyes.The reflected light of asphalt is a special kind of polarized light.The difference between this reflected light and light directly from the sun or from any artificial source is a matter of order.Polarized light is made up of waves that vibrate all in one direction, whereas ordinary light is made up of waves that vibrate not in one direction.It was like a group of men moving about in random order and a group of soldiers marching in one step, which constituted a distinct counterpoint.In general, reflected light is a kind of ordered light.Polarizing lenses are particularly effective at blocking this light because of its filtering properties.The lenses allow only polarized waves that vibrate in a certain direction to pass through, as if combing light.With regard to road reflections, using polarized sunglasses can reduce the transmission of light, because it does not let through the light waves that vibrate parallel to the road.In effect, the long molecules in the filter layer are directed in the degree direction and can absorb the degree polarized light.In this way, a large part of the reflected light is eliminated, while the overall illumination of the surrounding polarized sunglasses environment is not reduced.
Finally, the lenses of polarized sunglasses can darken as the sun's rays hit them.When the lighting diminishes, it becomes bright again.This is possible because the crystal of silver halide is at work.Under normal conditions, it can make the lens adhere to the perfect transparency.In the light of the sun, the silver in the crystal will be separated, in the free form of silver inside the lens to form a small collection.These small silver sinks, crisscrossed in irregular clumps, do not transmit light, but only absorb it, which darkens the lens.In the dim condition, the crystals recons
