Radiation glasses to distinguish small knowledge

identify

1. Due to radiation protection, the surface of the lens is coated with a radiation protection film. These films belong to the general anti-radiation film anti-radiation effect can reach about 50% according to the national detection, the latest technology uses 18 synthetic lenses, according to the national defense committee detection and protection rate can reach more than 99%.

2. Wear it on the spot and look at the computer to see what feels different. For example, if you don't wear any radiation protection glasses to watch the computer, you will feel that the monitor is particularly dazzling and slightly beating. If you wear a pair of anti-radiation glasses, you obviously feel clear and natural.

The famous ophthalmologist said that radiation protection glasses are used to add compound media to the production materials during the lens processing of the glasses, and then to coat the anti-radiation film on the lenses, which can play a certain filtering effect to some extent. This is because the radiation from computers, etc., comes from electromagnetic waves. These waves have a certain wavelength and amplitude. Compound media and anti-radiation films use this principle, so that electromagnetic waves of different wavelengths generated on the front and rear surfaces of the lens interfere with each other and cancel out. Part of the radiation.
Ophthalmologists also reminded everyone that in the face of computers, televisions and other monitors, do not wear colored lenses for a long time, because colored lenses easily lead to the sensitivity of the photoreceptor cells in the eye to reduce or even disappear, resulting in color weakness, color blindness risk.

Identify authenticity

Radiation protection glasses are very popular with netizens, but the radiation protection glasses products are quite good and bad, and many ordinary glasses are also used for radiation protection. How to identify whether the glasses can really protect against radiation requires the use of professional testing equipment, and the cost of the general professional testing equipment is relatively high. It is easy to detect whether it is UV-protected or not, and it can be detected accurately with the help of money detectors and violet lamps in our daily lives. Violet light shines on the anti-counterfeiting watermark of RMB, and it will show anti-counterfeiting imprint. After the light is blocked by the UV-protective lens, if the anti-counterfeit watermark disappears, it can be confirmed that the lens is UV-proof, the principle is very simple, because the anti-forgery watermark on the RMB is used Invisible UV inks are only visible under UV light (see picture for details). There are also some high-quality radiation protection glasses using the same anti-counterfeiting technology. Invisible anti-counterfeiting is designed on the lens. Through the irradiation of the violet lamp, the brand logo can be displayed on the lens.

The detection of electromagnetic waves can only rely on the detection of professional instruments. Eye hospitals and national metrology and testing centers will have related equipment. It is necessary to make sure that friends who can protect can also go there to check the authenticity.

Eye experts recommend that we try our best to shop around before buying radiation protection glasses and learn more about them. The best detection method is to be able to try on it first, and then decide to buy it after confirming the visual comfort and feeling well through personal experience. Because wearing anti-electromagnetic wave glasses to see computers, televisions and other monitors, a long time can have a clear feeling, vision is not fatigue, visual fresh and comfortable.

Glasses with real functions and high-end quality will provide free try-on services. Only in this way can consumers' ultimate rights and interests be protected.

China Labor Insurance Network