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...
1. Different functions
Ordinary sunglasses use the color dyed on the tinted lenses to weaken all the light into the eyes, but all the glare, refracted light and scattered light enter the eyes, whic...
Cleaning and maintenance of titanium sunglasses frames need to pay attention to the following points:
Daily cleaning
Rinse with water: Rinse the frame with running water, which can wash away the su...
Beautiful eyes are an effective “weapon” for hunting the heterosexual. Women in the new era, and even men who are at the forefront of developing trends, already have a great need for ...
The choice of children’s glasses requires a comprehensive variety of factors, on the basis of professional optometry, combined with children’s vision development, eye needs, etc., to be...
Frame width
Too wide: If the frame width is too large, the glasses are easy to slide on the face, especially in some light exercise or facial sweat, this situation will be more obvious. At the same...
