I saw different colors of sunglasses in the shop. What is the difference?

Introduction: In summer, the atmosphere rises gradually and the sunshine is more dazzling. It turns out that many people start to buy sunglasses, especially those who ride bicycles or drive cars. People who travel or spend their holidays will also wear sunglasses, which can protect their eyes from direct sunlight and ultraviolet rays. There are many kinds of sunglasses. Let's take a look at them with Bian Xiao. What's the difference between seeing different colors of sunglasses in the store?

First, meet the demand.

At present, the first choice to protect eyes is to wear appropriate sunglasses. The lenses of sunglasses are very particular. The American Optometry Association recommends choosing sunglasses with visible light transmittance 10-25%. Light-colored sunglasses are suitable for cloudy days and have weak shading ability. The lower the visible light transmittance, the higher the lens grade, and the better the ultraviolet protection. The second kind of sunshade mirror is generally suitable for sunny days with general sunshade ability, and the third kind of sunshade mirror is suitable for scorching sun with strong sunshade ability.

Second, the logo

In order to avoid ultraviolet radiation better, the American Association suggests choosing glasses that can block 99~ 100% ultraviolet radiation. In actual purchase, different material labels can meet this requirement. When buying sunglasses, be sure to follow the packaging label and details page. A glass material is provided. Every face has suitable sunglasses. The central idea of choosing sunglasses is to weaken the shortcomings of the face, make the square face softer and the round face more three-dimensional.

Third, color.

The color of sunglasses is also very particular, and different colors have different needs and preferences. Gray is omnipotent, suitable for almost all scenes, which can reduce the brightness of light and stun effect. Green is also a common color, with good color sense, which can improve contrast and visual clarity, while brown can increase contrast and sensitivity, which is more suitable for outing activities such as fishing and golf. There are many outdoor activities, and drivers are not advised to wear green, blue and purple lenses, so they can't see the traffic lights clearly.