When discussing the topic of how to buy glasses frames for children, we first need to make it clear that the choice of glasses frames is not only a consideration of beauty and fashion, but also rel...
Plate frames are a type of eyeglass frame made of plate materials, which have become increasingly popular in the market in recent years. Plate materials are usually a plastic synthetic mater...
The color depth of sunglasses and eye protection ability is not a simple positive correlation, the following is the specific analysis:
Sun glasses color action principle
The color of sunglasses is ...
TR-90 (plastic titanium) is a kind of polymer material with memory. It is the most popular ultra-light spectacle frame material in the world. It has the characteristics of super toughness, impact r...
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...
When discussing the topic of how to distinguish polarized sunglasses from ordinary sunglasses, we first need to identify the core differences between the two. Polarized sunglasses, as the name sugg...
