TEMPLATE FOR CALIBRATING A MACHINE USED TO MACHINE AN OPHTHALMIC LENS, DEVICE AND METHOD USING SUCH A TEMPLATE

摘要

The invention relates to a calibration template (1) for calibrating a machining device which is fitted with means for immobilizing and means for machining an ophthalmic lens, comprising an attachment part (10) designed to be attached to said immobilizing means, and a calibration part (20) formed around said attachment part. According to the invention, said calibration part is made of a material that can be machined by said machining means and on the one hand has a plurality of shaped patterns (30) and on the other hand has a plurality of visual identifiers (40), each visually associated with one of said shaped patterns.