System for capturing shape data for eyeglass lenses, and method for determining shape data for eyeglass lenses

摘要

An eyeglass lens or lens pattern shape capture system comprises a digitizer having a position indicator and a coordinate detecting surface. The digitizer generates positional data corresponding to the circumference of one of a lens and a lens pattern positioned on the detecting surface. A central processing unit is operably associated with the digitizer, and receives the positional data from the digitizer. An instruction set processes the positional data into trace data usable by an edger device.