Abstract: A dummy lens for molded-to-shape eyeglass frame front molds including mold halves defining rim forming channels and a central bridge forming channel. The dummy lens comprises a lenticular disc having a periphery ridge adapted to define the groove for the ultimate ophthalmic lens and an axial projection extending from the concave side of the disc and having a cylindrical portion for centering the dummy lens and a tapered portion at its free end defining a draft. The disc and the tapered free end of the dummy lens bear against respective opposed plateaus of the half molds.

Abstract: The invention relates to the production of spectacle frame parts of synthetic material and in particular to the moulding of spectacle frame faces of synthetic material, for example, of polyurethane.The faces are moulded between two casting half-moulds each comprising a plate having an impression on one surface thereof. Each plate has a substantially equal thickness at every point and is made of a polyolefine. Use of such half-moulds enables the faces of spectacle frames to be directly moulded into their final shape.