Mistakes in buying polarized sunglasses

In life, especially in summer, we often dare not go out because of too much sunlight. This is because there are three types of light emitted by the sun: visible light, infrared rays, and ultraviolet rays. Among them, ultraviolet rays have a great adverse effect on the skin and eyes of the human body, and polarized sunglasses can block all harmful rays without affecting the transmission of visible light because they have the function of polarizing light.

Ordinary sunglasses may be able to prevent ultraviolet rays, but they can only reduce the intensity of glare, etc., and cannot completely block these harmful rays; and polarized sunglasses, in addition to the basic anti-ultraviolet function, block the damage caused by ground scattering, inflection, reflection, etc. The dazzling glare caused by various factors makes people's eyes not easy to get tired even under strong light for a long time, and achieves the function of real protection. It is suitable for driving, fishing, traveling, and daily wear. At present, many mothers are blind when buying children's polarized sunglasses due to various reasons, and also have some misunderstandings.

1. Do not understand children's polarized sunglasses

Any product has its own characteristics. Compared with simple sunglasses, people think it is just a lens. Black ones can prevent sunlight and ultraviolet rays. But can the requirements of the lens really protect against ultraviolet rays and sunlight? Some mothers think that sunglasses are the lens that determines everything. The lens is the most important part of the glasses. A good pair of lenses can prevent sunlight and ultraviolet rays from penetrating. Therefore, when purchasing, they are desperately pursuing the specifications of the lenses. Some mothers do not understand polarized sunglasses for children, and many merchants use fake polarized sunglasses to deceive consumers. It is found that there is no polarized light and no UV protection effect at all, and the harm to children's eyes can be imagined.

If mothers blindly choose children's polarized sunglasses without understanding polarized sunglasses, or listen to the slander of merchants, this is completely a misunderstanding. Children's polarized sunglasses are mainly made of materials, lenses, frames, and relaxation. In terms of degree, it is mainly based on whether there is any harm to children.

2. Several misunderstandings to pay attention to when buying Misunderstanding 1: The darker the lens color, the better the UV protection effect. Many consumers mistakenly think that the darker the lens color of the sunglasses, the better the UV protection effect when buying polarized sunglasses. is incorrect. The color of the polarized sunglasses lens can only determine the amount of visible light passing through the lens, and does not affect the anti-ultraviolet function of the lens. The material and film layer of the lens determine the anti-ultraviolet function of the lens. The material and film layer of the lens cannot be distinguished by ordinary consumers. Consumers can judge through the uv400 mark on the sunglasses. Only uv400 sunglasses are qualified products, which have the function of blocking ultraviolet rays. Misunderstanding 2: The price and high quality must be good Some unscrupulous merchants sell some counterfeit and shoddy brand polarized sunglasses driven by profit. And some consumers think that expensive is the best when buying sunglasses, so they don't pay attention to the actual quality of the product. In fact, when purchasing polarized sunglasses, you must go to a formal and qualified optical store or online store to purchase them. Because such an optical store or online store not only guarantees product quality but also keeps up with after-sales service, which is beneficial to consumers to protect their own rights and interests Misunderstanding 3: The material of the frame Children's sunglasses must first consider whether children's skin can bear it First of all, many manufacturers of children's sun glasses do not think about the baby. They only spend time on the lenses and research the best anti-ultraviolet lenses, and often ignore the others. The frame itself is next to the child's skin. The skin of a baby aged one to seven is very tender, smooth and delicate. If a metal frame is used, it is easy to cause serious damage to the child's skin. Children should wear it If you wear a metal frame for a long time, you will be obviously uncomfortable. If you encounter discomfort, you will not want to wear polarized sunglasses. There are many children’s polarized sunglasses with metal on the market. When purchasing, you must choose those with soft materials. frame. Now there is an imported brand on the market, the more well-known one is CEBE, CEBE is a well-known heavyweight brand in the extreme sports industry.

3. How to identify polarized lenses

Here are a few simple and feasible methods:

1. If there is no description of the polarized lens on the lens, and the sun polarized glasses that are not marked on the manual, try not to buy it. Generally speaking, as long as it is marked, it will be marked in an obvious place. Only some merchants , To describe sunglasses that are not polarized technology as polarized, this is the way to confuse the public and prevent consumers from having the right to know. Under normal circumstances, polarized sunglasses have obvious polarized lens material electrostatic labels on the lenses, or indicate polarized lenses on the product tag. 2. When purchasing polarized sunglasses, you can use a polarized test piece for testing. Part of the pattern on the test piece cannot be recognized by the naked eye, but can be clearly recognized through polarized lenses. 3. Buy sunglasses of internationally renowned brands with polarized lens instructions

At present, many small brands of polarized sunglasses on the market have anti-polarized words on the lenses, misleading consumers.

4. A few points should be paid attention to when purchasing polarized glasses: In order to prevent unscrupulous merchants from setting traps, friends should pay attention to identification when purchasing polarized sunglasses. 1. You can also go to the bottom of the sun to have a specific experience. Under the sun, polarizers are much more comfortable than ordinary sunglasses. 2. Of course, the difference between polarizers and sunglasses is also clearly reflected in the price. At present, the price of general polarizers on the market is about 200-300 yuan, while professional outdoor polarizers range from 500 to thousands, and as many as thousands. Ten thousand. It also includes professional polarized sunglasses for children. The well-known polarized sunglasses on the market are the French CEBE SPicy series. According to foreign friends, French CEBE children's sunglasses have always been the most sold sunglasses abroad. France CEBE's most famous children's sunglasses SPicy series. Originally produced in Africa, it adopts polarized light technology, which can effectively filter out glare and protect the eyes from damage. The inner side of the frame adopts a V-shaped fixed design, which is suitable for children who love to move, so as to prevent the glasses from swinging left and right. The lenses are made of KEPL Mirror brand-professional eye protection lenses for children, this mirror brand can protect children's eyes more effectively and avoid the damage of ultraviolet rays and blue light. The frame is made of Nylon material, which is very tough.

5. Brand of polarized sunglasses

There are hundreds of brands of polarized children's sunglasses in the world, and there are also many children's sunglasses in my country. However, the dazzling array of children's sunglasses market always makes mothers confused, and even enters some misunderstandings in consumption. At present, the sunglasses market is mixed with good and bad quality. Many children's sunglasses are made of plexiglass or ordinary glass, and have no UV protection function. If you choose such inferior sunglasses, it is more likely to damage your eyes. Because the pupils dilate after wearing this type of sunglasses, ultraviolet rays are more likely to damage the eyes than without sunglasses. To choose a pair of sunglasses suitable for children, you should first understand the brand of children's sunglasses. Choosing a top brand is the last word. Big-name, professional-grade children's sunglasses can not only protect children's glasses, but also avoid the damage of ultraviolet rays and blue light.

Choose polarized lenses In order to filter the glare of the sun in the same direction on the water, land or snow, add vertical special coatings to the lenses, which are called polarized lenses. It is most suitable for sea activities, skiing or fishing. Nowadays, many mothers take their children to the beach in summer, and they must have polarized sunglasses. Therefore, for the sake of children, mothers must carefully buy a pair for their children. Protect the eyes, but also allow children to exercise freely, and the glasses can still be worn completely.

It mainly produces adult sunglasses, and there are very few models of children's sunglasses. It just changes the appearance of adult sunglasses, which is not suitable for children to wear. The frames of its children's sun glasses are mainly metal frames, which are more suitable for teenagers to wear. For children, the more flexible Nylon material frame can fit the skin better, improving comfort and ensuring safety. The lens design of children's sunglasses is colorful. In view of the choice of lens color mentioned above, it is best to choose lenses of traditional colors such as dark gray, brown, and dark green.

6. Summary The biggest difference between polarized sunglasses and ordinary sunglasses lies in the treatment of reflected light. 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 who is driving, the rearview mirror in front of him is an uncertain reflection light source, and the water surface on the roadside or smooth flat objects carried by passers-by can all become reflection light sources. is dangerous.

Polarized sunglasses filter out the reflected glare, so that it can prevent dizziness, and it will also make the 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.