Abstract: A metallic vapor deposition lens provided with a protection coat is provided, the surface of which lens is finished smooth and good at abrasion-proof characteristic.

Abstract: A metallic vapor deposition lens provided with a protection coat is provided, the surface of which lens is finished smooth and good at abrasion-proof characteristic. The metallic vapor deposition lens of the invention is characterized in that a filmy layer 2 made from a metallic material m is formed on at least one side surface of a lens proper 1 by vapor deposition and a polymerized and hardening layer 3 made from diethylene glycol bis(allyl carbonate) is overlaid on said metallic deposition filmy layer 2 so as to protect the surface of said filmy layer 2.

Abstract: A polarized lens of plastic lamination is provided, which lens is of high quality and highly durable in use while being inexpensively and stably producible without inconsistency in quality. The issues of the prior polarized plastic lens as produced by the blanking and hot machining method, the injection mold-heat bonding method or the sandwiching method are solved by making the most of the ductility and casting performance inherent in diethylene glycol bis(allyl carbonate) and combining therewith the optical characteristics of a polarized film made of poly(vinyl alcohol) resin as well as transparency and durability inherent in a polycarbonate resin plate so as to produce a polarized lens of plastic lamination.

Abstract: A metallic vapor deposition lens provided with a protection coat is provided, the surface of which lens is finished smooth and good at abrasion-proof characteristic.

Abstract: A polarized lens of plastic lamination is provided, which lens is of high quality and highly durable in use while being inexpensively and stably producible without inconsistency in quality.