OPTICAL ELEMENT MANUFACTURING METHOD AND MOLDING DIE

摘要

A stress-concentrating part (CN) can be formed in a part of a gate part (GN) of a molded product (MP) by inserting a notching member (45) into the gate part (GP) after a die cavity (CV) is filled with resin. In this case, because the notching member (45) is placed in the gate part (GP) after the die cavity (CV) is filled with the resin, interference with the flow of the resin by the notching member (45) can be prevented while filling with the resin. Thus, stress strain can be prevented from remaining inside a lens (OL), and deterioration in the performance of the lens (OL) can be prevented.