| 摘要 |
A method of producing a polarized lens and a casting die used therein are provided to allow a polarized film to be securely positioned within a casting die and a polarized lens to be cast in a uniform density and be almost free from any distortion on the surface so as to secure the stable uniformity of a lens as produced, which method comprises the steps of hot-pressing a polarized film 2 that is formed into a shape substantially corresponding to one of mobile portions 12 into a curved shape adaptable into a curvature of the lens; descending one of mobile portions 12 so as to generate a recess H thereat; mounting the polarized film 2 as shaped with the curvature into the recess H and closing a casting die 1 ; injecting a fused lens molding resin M into a cavity within the casting die 1 from a gate 13 with the lens molding resin M filled in a runner 13 a engaged to the casting die 1 ; and taking out a prototype lens Lb in which the lens molding resin M is integrally jointed with the polarized film 2 when the molding resin M is cured. |
