The difference between sunglasses and shades

Sunglasses, also known as sunshades, are used for shading. In the sun, people usually adjust the pupil size to adjust the luminous flux. When the light intensity exceeds the ability of the human eye to adjust, it will cause harm to the human eye. Therefore, in outdoor activities, especially in the summer, sunglasses are needed to block the sunlight to reduce the fatigue caused by eye adjustment or the damage caused by strong light stimulation.

Shades are a kind of glasses that can be used not only to be cool, but also to make use of its opacity so that you can look directly at everything from the surface. At the same time it is a kind of glasses that can block the sun's rays. Shades are also called sunglasses. It is a "labor" product that protects the eyes under strong light. Therefore, according to ordinary sunglasses and ordinary shades, there is not much difference. The only difference is in color, if have to say.  Shades are a type of glasses that are monochromatic, but the colors of sunglasses are mostly colorful. Therefore, it is actually difficult to distinguish the difference between sunglasses and shades.

sunglasses shades

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