Sunglasses are a popular accessory that not only protect the eyes from harmful UV rays but also add a touch of style to any outfit. Acetate frames have become increasingly popular in the world of e...
Optical property
Anti-ultraviolet ability: the eyes are exposed to sunlight for a long time during exercise, and ultraviolet rays are more harmful to the eyes. The UV400 logo of the sunglasses mean...
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...
The material of children’s glasses has an impact on the replacement frequency. Different frame and lens materials vary in terms of durability, adaptability, etc., as follows:
Frame material
P...
Optical glasses can alleviate visual fatigue to a certain extent, the following is a specific analysis from the perspective of different types of optical glasses:
Corrective optical glasses
Princip...
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...
