The difference between polarized sunglasses and gradient polarized sunglasses

What is the difference between polarized sunglasses and gradient polarized sunglasses?

Different structures

1. Polarized sunglasses: Polarized sunglasses are divided into two layers of lenses, and a layer of polarizing film is sandwiched between the two layers of lenses.

2. Gradient sunglasses: The color of the lens has a transition from dark to light. It looks more fashionable and beautiful. But the gradient color of the polarizer will affect the effect of polarized light.

The principle is different

1. Polarized sunglasses: because the silver halide crystals are working. Under normal conditions, it keeps the lens perfectly transparent. Under the irradiation of sunlight, the silver in the crystal will be separated, and the free silver will form small aggregates inside the lens.

2. Gradient sunglasses: The change means that the color of the whole lens is not the same, that is, the color of the upper part is darker and the color of the lower part is lighter. It doesn't feel very dark.

Different functions

1. Polarized sunglasses: Because polarized sunglasses have the function of polarizing light, they can block all harmful light without affecting the transmission of visible light, and can truly protect the eyes. In addition to the basic anti-ultraviolet function, polarized sunglasses also have anti-glare, reflected light on the road surface, water scale, etc., suitable for driving, fishing, traveling, and daily wear.

2. Gradient sunglasses: protect the glasses when the light is strong; beautiful.