Centering and locking unit for ophthalmic lenses has concentric jaws that hold lens by its edges as a light beam is passed through it

摘要

The unit, comprising a transparent supporting plate (23), a light source and an image acquisition system, has a lens lock (2) with concentric jaws (14) that hold the lens (3) by its edges. Each jaw has a supporting finger and a foot on the end of a swinging arm (15), and both jaw and foot can be used to hold the lens in two different positions above or on the supporting plate.