OPTICAL GLASS, PREFORM FOR PRECISION PRESS MOLDING, AND OPTICAL ELEMENT

摘要

The present invention relates to an optical glass with a high refractive index and good precision press moldability, and a preform for precision press molding and an optical element that are comprised of the optical glass. The present invention further relates to a method of manufacturing an optical element, a lens unit being equipped with an optical element and an image pickup device being equipped with a lens unit.