Patent ID: 7703915

Claim:
An injected plastic composite lens blank, comprising: a base with a face on a first side, an opposite second side, and a periphery, wherein the base has an insert sheet on the face of the base, and peripheral ejector marks extending from the periphery of the base, each of the ejector marks having a first surface and a second surface opposite and parallel to the first surface, wherein an outermost peripheral edge of the insert sheet is adjacent to and in contact with said ejector marks, wherein the ejector marks of the base comprise cylindrical tabs, wherein the second side of the base has a recess at each of the tabs of the ejector marks, wherein the first side of the base has an extra thickness at each of the tabs of the ejector marks, the extra thicknesses forming spacers, and wherein the recesses are configured to receive and center the spacers of an adjacent lens blank.