are not a summer patent. Radiation is available in any season. When we usually go out, wearing a pair of anti-radiation sunglasses
can protect our eyes, but we must choose qualified ones, so how to choose What about qualified radiation-proof sunglasses
? Ray-Ban RB3449 Men’s Sunglasses
Silver/Lens Colorful Blue 004/55 Ray-Ban Trendy Frameless Radiation-proof Lenses Colorful Blue Alloy Large Size First of all, let’s understand what is radiation-proof glasses. Radiation protection glasses are made by adding some compound substances during the processing of the lens of the glasses, and the relevant radiation protection film is pasted on the lenses. Because computer radiation is caused by electromagnetic waves, generally speaking, electromagnetic waves have a certain amplitude and wavelength. The compound medium and the radiation protection film of the radiation protection glasses use this principle to use electromagnetic waves of different wavelengths to interfere with each other to achieve the purpose of radiation protection. Before buying sunglasses
, we must first recognize these two points. One is that not all sunglasses have UV protection. When the eye encounters strong light, the pupil will naturally become smaller, so that the ultraviolet energy entering the eye is reduced. Once wearing glasses without UV protection, the pupils will be dilated, and the glasses do not have the effect of isolating ultraviolet rays. Eyes are like a wide open door, and letting ultraviolet rays enter, the damage to the eyes can be imagined. The second is that sunglasses can block ultraviolet rays because a special coating is added to the lenses. Inferior sunglasses not only cannot block ultraviolet rays, but also severely reduce the transmittance of the lenses, making the pupils larger, and the ultraviolet rays will be injected in large quantities. Damage to the eyes. In addition, inferior lenses also cause people to have symptoms of visual fatigue such as nausea, forgetfulness, and insomnia. Ray-Ban RB4175 Men's Sunglasses 877/Z2 Black Gold/Pink Film How to choose qualified radiation protection sunglasses? Recommended reading: How to choose sunglasses according to face shape 1. Check the logo of anti-ultraviolet function. Whether a pair of sunglasses has anti-ultraviolet function, we can't distinguish it with the naked eye. The manufacturer's express commitment to the product is that consumers buy sunglasses with protective function For the only reference, we can see clear signs such as '100% UV protection2. Check the safety-related logos. Sunglasses with safety-related performance, whose lenses are made of impact-resistant materials such as PC films, are often marked with 'impact resistance\'In line with the highest standards in Europe and America3. lenses are made of glass and resin, and the best sunglasses should use polarized lenses. Polarized lenses can effectively filter out reflected light and harmful ultraviolet rays, and are shatter-resistant and abrasion-resistant. They are the most popular sunglasses. Related reading: Anti-UV sunglasses
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Wenzhou Timeless Glasses’s model also predicts (i) a positive effect of management on firm performance; (ii) a positive relationship between product market competition and average management quality (part of which stems from the larger covariance between management with firm size as competition strengthens); and (iii) a rise (fall) in the level (dispersion) of management with firm age.