APPARATUS AND METHOD FOR CLOSURE OF OPHTHALMIC LENS MOLDS

摘要

Apparatus and methods for manufacturing ophthalmic lenses by bringing together a pair of mold halves (2,5) to form a closed mold assembly, are described. The method includes measuring a force applied to bring the mold halves (2,5) together. The apparatus includes at least one force sensor (4) in operative communication with a single pair of mold halves (2,5), and a controller (10) for controlling a velocity of movement of a mold half (5) and for determining when a measured force or average measured force is greater than or equal to a predetermined threshold force.