Ophthalmic lens piercing method for manufacturing spectacles, involves controlling piercing tool by numerically controlled piercing machine to pierce lens, by using reference point of lens as zero point

摘要

The method involves fixing a lens in a position where a reference point of the lens corresponds to a punch (33), by moving the lens in a plane perpendicular to an axis of a piercing tool (15). The tool is brought closer to the lens. The punch is retracted to disengage a support zone of the lens. The tool is controlled by a numerically controlled piercing machine (12) to pierce the lens, by using the reference point as zero point. An independent claim is also included for a device for implementing a method of piercing the ophthalmic lens.