METHOD OF BONDING A FILM TO A CURVED SUBSTRATE

摘要

A method of bonding a film (2) to a curved substrate (1) comprises prefor ming the film by applying a pneumatic pressure difference between two sides of the film and by heating said film. An intermediate shape is then conferre d on the film, which is suitable for applying the film against a curved face of the substrate. This application is carried out, on the one hand, by keep ing the film m the intermediate shape by means of an adjusted pressure diffe rence applied between the two sides of the film and, on the other hand, by p ressing the substrate against the film by means of a movable support (12-14) . Such a method is used to obtain a defect-free ophthalmic lens with a film bonded to it.