In the previous article, we discussed “Are polarized lenses good for skiing?”. In this article, let’s talk about “What does gradient mean in sunglasses?”.
What does gradient mean in sunglasses?
Gradient sunglasses are polarized sunglasses. The lens is divided into two layers, and a polarizing film is sandwiched between the two layers of lenses. The polarizing film allows light to enter the eyes from one direction and filter out random reflections and glare. That is the reason why polarized sunglasses are more suitable for driving and fishing than ordinary sunglasses.
Also, the gradient is the meaning of gradual color, which means that the color of the lens has a transition from dark to light. It looks more fashionable and beautiful. However, the gradual color of the polarizer will affect the effect of the polarized light.(https://www.koalaeye.com/collections/sunglasses)
The structure is different
Polarized sunglasses: Polarized sunglasses are divided into two layers of lenses, and a polarizing film is sandwiched between the two layers of lenses.
Gradient sunglasses: The color of the lens has a transition from dark to light. It looks more fashionable and beautiful. However, the gradual color of the polarizer will affect the effect of the polarized light.
The principle is different
Polarized sunglasses: Because the silver halide crystals are at work. Under normal circumstances, it can keep the lens perfect transparency. Under the sunlight, the silver in the crystal separates, and the free silver forms small aggregates inside the lens.
Gradient sunglasses: The change means that the color of the entire lens is not the same, that is, the color of the upper part is darker and the lower part is lighter. This effect will look very fashionable, and it will make you not feel it very dark when you look closer.
The function is different
Polarized sunglasses: Polarized sunglasses have the function of polarizing light, so they can block all harmful light without affecting the transmission of visible light, which can truly protect the eyes. In addition to basic anti-ultraviolet functions, polarized sunglasses also have anti-glare, reflected light on the road, and on the water surface. They are suitable for driving, fishing, traveling, and daily wear.
Gradient sunglasses: Gradient sunglasses can protect the glasses when the light is strong. Also, they are so beautiful for daily wear.
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