Glasses are necessary riding equipment. They are inappropriate to increase the sense of ritual. More importantly, they bring us safety protection and more comfortable riding experience. In the process of riding, it can prevent sand, stone and flying i…
The function of aspheric lens is to make the focus position formed by paraxial light and paraxial light coincide by modifying the curvature of lens surface.At present, there are three main methods for manufacturing aspheric lenses:1. Grinding aspheric…
For people who use their eyes for a long time, a good pair of anti blue light glasses can better protect their eyesight and alleviate the fatigue of their eyes. So how to verify when choosing anti blue light lenses? 01. Go to a professional glasses s…
In daily life, when observing other peoples glasses, you will find that how can some peoples glasses have different colors? It may be anti blue light or anti ultraviolet glasses. Is it better to choose the lens inside the glasses, spherical or aspher…
First, correct the misunderstanding. You cant judge what color film is good or bad by price. Because they have different functions.Businesses must focus on making money. You must remember that no matter what industry it is, even if it is well done and…
Many people are confused about how to choose lenses.Dont worry. Xiaoxin teaches you some ways to choose lenses from the following five aspects. I hope it can help you.No. 1 selected refractive indexThe refractive index reflects the ability of the lens…
