What is the difference between polarized sunglasses and sunglasses

Wearing sunglasses is not just to block the sun, but has become a fashion. Ladies have regarded sunglasses as a must-have item for modifying their appearance like necklaces and earrings; men have regarded sunglasses as a small prop to highlight their masculine charm. And in recent years, more and more people will mention polarizers when they talk about sunglasses. What is the relationship between sunglasses and polarizers, and what is the difference between them?

1. The first is the relationship between the two. Sunglasses include polarizers, which are a type of sunglasses. It should be said that polarized glasses are a kind of special sunglasses designed with people's more and more requirements and needs.

2. Then let’s talk about the difference. The sunglasses we usually talk about, as long as there is no special point, are some sunglasses that only have the two basic functions of blocking strong light and filtering ultraviolet rays. The function of such sunglasses is relatively simple, the technical content is lower, and of course the cost is lower. Now many businesses sell ordinary sunglasses as polarized sunglasses, which has harmed many consumers.

3. The biggest difference between polarized sunglasses and ordinary sunglasses lies in the treatment of reflected light by this kind of sunglasses. In the environment we live in, there are three kinds of light: direct light, reflected light and diffuse light. Among them, diffuse light is not perceived by us at ordinary times, but it is the most important kind of light that our eyes can see objects; and Because direct light has a fixed light source (such as the sun), as long as a little attention is paid, it will not cause harm to our lives. These common reflectors in life often reflect light suddenly, which will bring a lot of inconvenience to our life. For example, for a driver, the front rearview mirror is an uncertain reflection light source, and the water surface on the side of the road or smooth flat objects carried by passers-by can all become reflection light sources. is dangerous.

4. Polarized sunglasses are designed to filter out the reflected glare, so that it can prevent dizziness, and it will also make the field of vision clearer and reduce visual fatigue when traveling in summer. Of course, the price of such sunglasses will be much more expensive. If you just go out for a walk, ordinary sunglasses can fully meet your needs. But whether you are driving or doing outdoor activities such as mountaineering and skiing, choosing a pair of polarized sunglasses will make you more relaxed and comfortable.