[Polarized sunglasses] How to choose polarizers to choose polarized sunglasses

[Polarized Sunglasses] How to choose polarizers to choose polarized Sunglasses

How to choose polarized Sunglasses

The first consideration is the quality of polarized Sunglasses

The primary function of polarizing Sunglasses is to prevent ultraviolet rays and filtrate polarized light. Good polarized Sunglasses lenses can block more than 90%of ultraviolet penetration. Please choose polarized Sunglasses with the best blocking of UV400 to the best obstruction of ultraviolet logo;The inferior polarization Sunglasses of the polarizing filtering function, such as dark Sunglasses, is darker with the light of the human eye and the pupils of human eyes will become larger, and the ultraviolet rays of the eyes will increase, increasing damage to human eyes.

Will there be discomfort in long -term wear polarized Sunglasses?

Genuine polarized Sunglasses have to be comfortable to wear; if you wear bad feelings such as discomfort, dizziness, headache, dry eyes, tingling, etc.Generally, inferior lenses have no technical and functional at all when manufacturing, and the lens materials are also very inferior. Choosing inferior polarizer Sunglasses cannot protect the eyes. On the contrary, it will cause damage to be worthless.

Select polarizing Sunglasses to focus on the protection function of the frame

The protection function of polarizing Sunglasses Apart from the basic functions such as anti -ultraviolet rays, avoiding strong light dazzling, and filtering glare, most polarizing Sunglasses frames are designed with surface arcs. In outdoor sports, it can effectively prevent wind and foreign body stimulation. In additionThe hardness of the lens and the flexibility of the frame of the frame must be considered whether it will hurt the human body.

The selected polarized Sunglasses should be true and natural

The color selection of polarized Sunglasses should be based on the color of the surrounding environment, the edges of the object are clear, and the principle of effectively identifying different color signal Lights.Especially when driving Sunglasses, it is guaranteed to drive safety.The color of the lens is better in gray, tea, and green, because these colors of lenses are better absorbed by infrared and ultraviolet rays, which can improve visual contrast and clarity. Wearing effects in severe air pollution or fog.

The identification of the quality of polarized Sunglasses

Generally, regular glasses shops have instruments to detect Sunglasses resisting ultraviolet capacity. Through instrument detection, you can know whether the glasses in your hands have reached the standard.In addition, the simple method of testing the quality of Sunglasses is: you can use the ultraviolet light sent by a banknote test or a banknote check machine to observe the UV logo pattern on the RMB through Sunglasses. If the quality of the Sunglasses is poor and there is no obstruction of the ultraviolet rays, it can still be clearly clear.When you see the UV logo pattern on the RMB, on the contrary, if the quality is excellent, you can't see it.

How to identify the authenticity of polarized Sunglasses

The polarized lens is made of synthetic resin, which is as light and precise as Contact lenses. After being made, it can be filtered to remove the road reflection under the wet surface or sunlight.Main advantages: light, can filter 99%of the dazzling reflection chaos, 99%of harmful ultraviolet light, not easy to break.In order to filter the dazzling light in the water surface, land or snow, add vertical special coatings to the lens, which is called polarized lens.It is most suitable for outdoor sports (such as driving, maritime activities, skiing or fishing).More and more people chose polarized Sunglasses when choosing Sunglasses.But how to distinguish the polarized Sunglasses you buy has the function of polarizing and UV400.

1. Find a liquid crystal display to face the level of the glasses at the screen. At this time, the lens has not changed. Then when the glasses rotate up the clockwise to 45 , the color of the lens becomes darker, and then rotates and returns to normal.Polarized lenses, if there is no change anyway, it is not polarizing.(Note that it must be a LCD display).

2. The UV400 means 100%blocking ultraviolet rays.

The following method can simply measure the anti -ultraviolet effect of the lens or whether the lens has passed the UV400 identification.The Sunglasses on the market do not necessarily have the effect of isolation of ultraviolet rays. If you want to know if the lens can isolate ultraviolet rays:

Find an ultraviolet banknote test lamp and a one hundred yuan.You can see the RMB 100 of the RMB.If you have a lens with the UV400 function, you cannot see the anti -counterfeiting.

precautions for Polarized Meic mirror

1. Try to use polarized lenses for the lens of driving the lens.Because the biggest trouble of people's eyes when driving is glare and ultraviolet radiation.Only polarized lenses can effectively eliminate glare.As we all know, ultraviolet rays are chronic killers of the eyes, which can cause problems such as cornealitis and macular lesions.

2. Some special feature polarizers will not be obvious when testing polarizers. For example, driving mirrors (polarizing mirrors) lenses at night is relatively lighter, usually light yellow lenses. When testing polarizers, the lens is 45 when it is 45 .Through the lens, you can see that the color of the lens becomes dark yellow, and it will not become black and opaque like a gray lens.