1.61 Photogrey (Spin Coating) Single-Vision Finished Lens

1. Photochromic Principle    
This lens adopts Spin Coating technology, where photochromic agents are evenly applied on the outer surface of the lens via spin coating. These photochromic agents are distributed in a scissor-like molecular structure. When exposed to ultraviolet (UV) light, the molecules automatically close to block light from entering. Leveraging their excellent light responsiveness and colorability, the agents react quickly to light changes—enabling the lens to automatically adjust its tint based on the intensity of UV rays.

2. Coating Features    
Different coatings can be selected based on specific needs:    
HMC (AR) Coating (High-Hardness Anti-Reflective Coating): Effectively reduces light reflection on the lens surface, improves light transmittance for clearer vision, and enhances lens hardness to minimize the risk of scratches.