POLYMER-GLASS HETEROGENEITY JOINING LENS UNITED SUBSTRATE FOR CUT-OFF INFRARED RAYS AND ZOOM OPTICS INCLUDING THE SAME

摘要

PURPOSE: A polymer-glass heterogeneous cemented lens integrated with a substrate for blocking ultraviolet rays and a zoom optical system including the same are provided to improve the assembly efficiency of a zoom optical system by joining a substrate for blocking ultraviolet rays at the same time of forming a polymer lens on a glass lens. CONSTITUTION: A polymer-glass hetero-junction lens (10) includes a glass lens (20), a polymer lens (30), and a substrate (40) for blocking ultraviolet rays. The glass lens has a concave part with minus optical power on one side. The polymer lens is formed on the glass lens by filling a photo-curable polymer in the concave part and performing ultraviolet irradiation hardening. The substrate for blocking ultraviolet rays is attached to the polymer lens by ultraviolet irradiation while being pressurized on the photo-curable polymer filled in the concave.