are safety glasses that we need to wear during sports. They can protect our eyes from harm and look more beautiful. Sports sunglasses mainly have these two advantages, so how much do you know about sports sunglasses? Let's learn together. SP0890 Unisex Spectacle Frame Yellow/Colorful Regarding the choice 1. Spectacle frame The spectacle frame needs to be soft, flexible, resistant to impact, and protect the face from damage during exercise. The veneer design of the frame can keep the eyes close to the edge of the frame to prevent the eye irritation from strong winds during rapid movement. 2. The quality of lens sports glasses mainly refers to the quality of the lens. The quality of the lens can be considered from the hardness, light transmission and color of the lens. Hardness: PC film (commonly known as space film) used in sports glasses is not broken, not cracked, and impact resistant. Degree: 25 degrees below 500 degrees, 50 degrees below 500 degrees. However, there are some high degrees that need to be reduced by more than 100 degrees to adapt, but some people do not need to reduce it. This varies from person to person. Interpupillary distance is suitable: the frame and eyes should be controlled within 10mm. If the interpupillary distance is 65mm, then it is better to choose a frame with an interpupillary distance of 62-72mm. Light transmittance: The current world-wide standard is the US Food and Medical Hygiene Inspection Service (FD?A) standard. According to the F?D?A standard, the lens must filter out a certain degree of ultraviolet rays in the sun while ensuring the light transmittance. When 100% of the ultraviolet rays are filtered out, the label 'UV-400PROTCT10N' should be affixed, so check the Uv on the lens Labels are very important. Regarding color 1. Gray lens: It can absorb any color spectrum evenly, so the scene will only become darker, but there will be no obvious chromatic aberration, showing a real and natural feeling. It belongs to the neutral color system. 2. Brown lenses: filter out a large amount of blue light, which can improve visual contrast and clarity. It is better to wear under severe air pollution or foggy conditions. 3. Green lens: while absorbing light, it maximizes the green light reaching the eyes, so it has a cool and comfortable feeling, suitable for people who are prone to eye fatigue. 4. Blue-gray lenses: similar to gray lenses, they belong to neutral lenses, but the color is darker and the visible light absorption rate is higher. 5. Yellow lens: Strictly speaking, it is not a sunglasses lens, because it hardly reduces visible light, but in foggy and twilight hours, yellow lens can improve contrast and provide more accurate vision, so it is also called night vision goggles. Some young people wear 'sunglasses' with yellow lenses as decoration. 6. Light blue, light pink and other lenses: the same lenses are more decorative than practical. Men's sports bike mirrors, with polarized sunglasses, with degree glasses. Regarding maintenance, 1. First of all, pay attention to developing good wearing habits and insist on taking off the glasses with both hands. Although the performance of sports glasses is good, they cannot withstand long-term one-handed picking and wearing. 2. Sports glasses usually use PC lenses with strong impact resistance. In the usual maintenance, you must use detergent and a comprehensive professional lens cloth to clean the PC lens. 3. When not wearing sports glasses, put them in a glasses bag and store them properly. Do not leave them in a high temperature environment for a long time to avoid deformation of the glasses or affect performance. Do not store them with hard or sharp objects to avoid scratching the lenses. Or topcoat. Related Reading: Fashion Sunglasses, Famous Brand Sunglasses
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