Abstract: The present invention relates to a method of manufacturing a plastic lens comprising discharging a plastic lens starting material liquid from a tip opening of a discharge hole of a mixing and discharging part, the mixing and discharging part comprising a mixing chamber comprising a stirring means that stirs a plastic lens starting material liquid and the discharge hole communicating with the mixing chamber; casting the plastic lens starting material liquid that has been discharged into a casting mold, the casting mold comprising a cavity and a casting hole for introducing the plastic lens starting material into the cavity, and the plastic lens starting material being cast into the casting mold through a tip opening of the casting hole; and polymerizing the plastic lens starting material that has been cast within the casting mold to obtain a polymerized product.

Abstract: A method of manufacturing a plastic lens by mixing plural polymerizable components, and immediately after mixing, casting a mixture into a casting mold and conducting polymerization to obtain a molded article. A method of manufacturing a plastic lens by casting a plastic lens starting material liquid flowing out of a casting jig opening into a casting mold and curing the above starting material liquid to form a molded article. A gasket for molding plastic lens comprised of a cylindrical member comprising openings for fitting by insertion of two molds. A casting mold for molding plastic lens, wherein the above molds are detachably held in the above openings of the above gasket so that molding surfaces of the two molds are positioned opposite at a prescribed interval to form a cavity corresponding to a lens shape within the above cylindrical member. A casting jig for plastic lens starting material liquid equipped with a nozzle for casting a plastic lens starting material liquid into the casting mold.

Abstract: A method of manufacturing a plastic lens by mixing plural polymerizable components, and immediately after mixing, casting a mixture into a casting mold and conducting polymerization to obtain a molded article. A method of manufacturing a plastic lens by casting a plastic lens starting material liquid flowing out of a casting jig opening into a casting mold and curing the above starting material liquid to form a molded article. A gasket for molding plastic lens comprised of a cylindrical member comprising openings for fitting by insertion two molds. A casting mold for molding plastic lens, wherein the above molds are detachably held in the above openings of the above gasket so that molding surfaces of the two molds are positioned opposite at a prescribed interval to form a cavity corresponding to a lens shape within the above cylindrical member. A casting jig for plastic lens starting material liquid equipped with a nozzle for casting a plastic lens starting material liquid into the casting mold.