Polarizers are manufactured according to the principle of polarization of light. We know that when the sun shines on the road or water, it directly irritates the eyes, making the eyes feel...
What is cellulose acetate?
Cellulose acetate refers to a thermoplastic resin obtained by esterification with acetic acid as a solvent and acetic anhydride as an acetylating agent under the action o...
These 6 steps are indispensable
Recently, many foreign friends have asked how to open an optical shop and how to reduce cost. For newbies, most of them just heard that the optical shop is more pro...
1.Wearing glasses can correct your vision
Myopia is caused by the fact that the distant light cannot be focused on the retina, causing distant objects to be unclear. However, by wearing a myopic le...
In summer, the sun is hot and sweat is frequent, and for people who wear frame glasses, choosing a suitable glass material is crucial. So, in the hot summer, what material frame glasses are most su...
Outdoor enthusiasts: such as mountaineers, cyclists, hikers, golfers, etc., who are exposed to the sun for a long time, and have a high risk of eye damage from ultraviolet rays and glare. Choose po...
