Lens grinding apparatus for grinding an eyeglass lens from a plurality of directions

摘要

A subject lens is held by two chuck shafts (100,150), which are rotated synchronously by pulse motors during a grinding operation. A group of grinding wheels are mounted on each of rotary shafts of right (300R) and left (300L) lens grinding parts. The rotary shafts are disposed on opposite sides of the chuck shafts. A desired grinding wheel for each processing is selected by moving the rotary shaft vertically. To grind the subject lens, the rotary shafts are moved independently by pulse motors toward the rotation axis of the chuck shafts based on lens frame shape data in the case of rough processing. <IMAGE>