How much do you know about photochromic lenses? Follow the editor of Best Photochromic Lens In Mass products to have a simple understanding and see!
The color-changing lens includes a base layer, a hard strengthening layer and a photochromic coating, the hard strengthening layer is arranged on both sides of the base layer, and a photochromic coating is arranged between the base layer and the hard strengthening layer, and also includes: a front The protective layer, a pre-protective layer is arranged between the base layer and the photochromic coating, and the pre-protective layer can attract the color-changing substances of the photochromic coating to migrate to the base layer and maintain activity; the post-protective layer, the photochromic coating A post-protective layer is arranged between the coating and the hard strengthening layer, and the post-protective layer can prevent the discoloration substances of the photochromic coating from migrating to the hard strengthening layer.

The above is the editor of Best Photochromic Lens In Mass products: a brief introduction to the relevant knowledge of photochromic lenses.