Patent ID: 7121119
Filing Date: 2006-10-17
Classification: C03B

Abstract:
1. A press-molding apparatus for obtaining a plurality of optical elements by simultaneously press molding a plurality of materials comprising: an upper mold and a lower mold, each of said upper mold and said lower mold comprising a plurality of molding surfaces arranged so that the centers of the molding surfaces on each of said upper and said lower molds are aligned in a single line; a supply device for supplying each of the materials onto each of the molding surfaces of the lower mold; and a position correcting device for correcting the positions of the materials supplied onto the molding surfaces of the lower mold; wherein the position correcting device comprises a pair of separate members adapted to be opened and closed with each other, so that a positioning surface formed on each confronting surface of the pair of separate members be brought into contact with outer peripheries of the materials on the lower mold and move the materials so that each of said materials is placed on the center of each molding surface, when the separate members are closed.