Patent ID: 8673186
Filing Date: 2014-03-18
Classification: B29C,B29D,G02B

Abstract:
1. A method of fabricating an optical wedge from a wedge blank using a vacuum molding tool, the method comprising: inserting the wedge blank into the vacuum molding tool, the vacuum molding tool including a molding surface; applying a vacuum to the vacuum molding tool to shape a molded surface of the wedge blank to the molding surface of the vacuum molding tool; removing a layer from a surface of the wedge blank opposite from the molded surface of the wedge blank to expose a machined surface of the wedge blank; casting a finish layer on top of the machined surface to maintain the molded surface in a shape imparted by the molding surface of the vacuum molding tool thereby forming a finished optical wedge; and removing the finished optical wedge from the vacuum molding tool.