1.67 Photogrey (Spin Coating) Single-Vision Finished Lens

1. Photochromic Performance   
Spin coating technology is used to evenly coat the outer surface of the lens with a color-changing agent. When exposed to UV light, the lens quickly reacts to the light, gradually darkening in color, acting like sunglasses and shielding the eyes from harmful glare. Back indoors, the lens' color gradually lightens and returns to its transparent state. The color change is rapid, typically completing the transition from light to dark in a short period of time, and the resulting color remains uniform and stable.

2. Material Advantages    
The lens is made of KR Resin, which boasts excellent optical and physical properties. It is lightweight, ensuring more comfortable wearing, while also offering a certain level of impact resistance to better protect the eyes.