Patent ID: 7114696
Filing Date: 2006-10-03
Classification: B29C,B29D,B29L,Y10S

Abstract:
1. A casting device, comprising: a. a ring having an interior periphery; b. a plurality of front molds, each front mold formed of a plastic and having a lens-forming surface, and the front molds providing an edge circumscribing the lens-forming surface that is sized to be complementarily received within a portion of the interior periphery of the ring, and a base having dimensions greater than the interior periphery; and c. a rear mold formed of a plastic and having a lens-forming surface, the rear mold configured to be paired with each of the plurality of front molds, a rim circumscribing the lens-forming surface that is sized to be complementarily received within a portion of the interior periphery of the ling, and a flange having dimensions greater than the interior periphery; wherein when the edge of each of the front molds and the rim of the rear mold are configured to be received by the ring, the lens-forming surfaces of the front and rear molds and the ring form a mold cavity which has dimensions of a desired lens formable therein; and wherein the plurality of front molds are configured to form lenses of different effective diameters.