Some people spend tens of yuan to buy a pair of eyewear , some people spend thousands of yuan to buy a pair of glasses, and some even tens of thousands of yuan. Why do the prices of glasses vary so much? Based on the experience accumulated in our daily life, we can first think of the first factor: the quality is different. The same product, even if the same material is used, the difference in production process and the ability to control details will still lead to differences in quality. Good quality glasses are naturally more expensive. In addition to quality reasons, what other reasons? After two years in the eyewear industry, I would like to introduce to you: 2、the frame material is different, the lens material is different. Frame material is different: At present, the commonly used frame materials mainly include natural materials such as plastic,cellulose acetate, metal, titanium and horn. Glasses made of these materials are called as the names suggest: plastic glasses, acetate eye...
It is undeniable that with the improvement of living standards, electronic products are becoming more and more popular, and more and more people wear myopia eyewear and sunglasses. Now there are more and more types of eyewear , such as acetate eyewear , metal eyewear , titanium eyewear and some horn eyewear made of natural materials, etc., and the process is more complicated than before. A pair of good eyewear is generally expensive, but many people often know very little about eyewear and do not know how to protect their eyewear. Here are a few requirements for wearing eyewear. Wearing eyewear point 1: Take off and wear eyewear with both hands. Taking off and wearing eyewear with one hand for a long time will deform the eyewear. In particular, the perforated eyewear will not only deform and loosen the screws, but also cause the lenses to be broken in severe cases. Wearing eyewear point 2: Do not wear eyewear when participating in strenuous exercise, so as not to be deformed by c...
As a lightweight and high-strength material, carbon fiber glasses are loved by many people because of their lightness and good toughness, especially in the field of sports glasses. Let's learn more about carbon fiber materials. Among glasses made of various materials, carbon fiber glasses are a special kind of glasses. To better understand this kind of glasses, it is necessary to have a detailed understanding of the material from which it is made, which is the carbon fiber that this article will talk about. Below is a pair of carbon fiber sunglasses with a double bridge, fitted with a single black sun lens. Carbon fiber refers to high-strength and high-modulus fibers with a carbon content of more than 90%. High temperature resistance ranks first among all chemical fibers. It is made of acrylic fiber and viscose fiber, which is oxidized and carbonized at high temperature. It is an excellent material for manufacturing aerospace and other high-tech equipment. Carbon fiber is mainly ...
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