1.67 Photogrey (Spin Coating) Photochromic Finished Lens

● 1.67 Refractive Index - Lighter, Thinner & More Comfortable. High refractive index lenses can be made thinner and lighter, making them more comfortable to wear and more aesthetically pleasing. It can reduce the thickness of the edge of the lens, making the overall appearance of the glasses more fashionable.  For people with high myopia, high refractive power lenses are a good choice because they can provide sufficient correction effect while maintaining the thinness and lightness of the lens.

● Spin coating is a thin film preparation technology that can realize uniform coating of materials on the substrate surface by high-speed rotation.

● The spin coating technique places the color-change film on the surface of the lens, so the color only changes on the surface of the lens.

● The color changes faster, the color is deeper, and the fading is more uniform.