Patent ID: 8418516
Filing Date: 2013-04-16
Classification: B29D

Abstract:
1. A method of manufacturing an optical element including a positioning reference portion serving as a positioning reference, the manufacturing method comprising: providing a mold having an inner wall; providing an amorphous metal member including an inner material and an oxide film disposed on the inner material, the amorphous metal member including a region configured to face the inner wall of the mold and having a shape nonparallel to the inner wall of the mold, the region configured to form a positioning reference portion; heating the amorphous metal member; and pressing the heated amorphous metal member in such a manner that the oxide film is broken at the region by internal pressure, and the inner material is moved by viscous flow through the broken oxide film and thrust against the inner wall of the mold to form a newly-formed surface that defines the positioning reference portion.