In general outdoor environments, black, gray, and brown colors have good filterability and good color perception. They can distinguish colors better. Dark-colored sunglasses are suitable for use in places with strong sunlight, such as beaches.
For the specific UV filtering effect, pay attention to check whether the inside of the temples is marked with UV400, which is a recognized standard in the industry, and our products are all UV400 standards
Once the curvature of the lens exceeds 15 degrees, the refractive index of the lens receiving light will change, and the greater the curvature of the mirror, the greater the rate of change of refraction.
Post time: Aug-11-2021