LENS CIRCUMFERENTIAL RIM MACHINING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a lens circumferential rim machining device excluding sandwiching and detachment work of a reference ball. SOLUTION: This lens circumferential rim machining device has lens rotating shafts 16 and 17 for sandwiching a lens L to be machined, a carriage 15 turnable around a pivot, and a grinding wheel rotating shaft 9 provided with a grinding wheel 5 for grinding the lens L to be machined. The reference ball 70 having a predetermined radius is attached to the lens rotating shaft 17.