Photochromic float glasses and methods of making the same

摘要

Photochromic float glass and methods of making the same are provided. In especially preferred forms, the present invention is embodied in float glass having a non-photochromic glass substrate layer and a photochromic layer fused onto the substrate layer. During production, layers of the photochromic and non-photochromic glass are brought into contact with under conditions which fuse the layers one to another.