Transfer optical surface machining method, optical device producing mold and optical device

摘要

A machining method of machining a transfer optical surface on a optical element producing die having the transfer optical surface made of a material having Vickers hardness of Hv1500 or more, comprising: machining the transfer optical surface on the optical element producing die by cutting with a cutting tool, wherein a rake face of a tip of a blade of the cutting tool is set with an angle of minus values at an incising point on a surface to be machined.