The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2014
Filed:
Jun. 07, 2007
Antoine Marty, Saint-Orens, FR;
Paul Lefillastre, Charenton le Pont, FR;
Antoine Marty, Saint-Orens, FR;
Paul Lefillastre, Charenton le Pont, FR;
Essilor International (Compagnie Generale d'optique), Charenton le Pont, FR;
Abstract
A method of bonding a film () to a curved substrate () comprises preforming the film by applying a pneumatic pressure difference between two sides of the film and by heating said film. An intermediate shape is then conferred 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 keeping the film m the intermediate shape by means of an adjusted pressure difference applied between the two sides of the film and, on the other hand, by pressing the substrate against the film by means of a movable support (-). Such a method is used to obtain a defect-free ophthalmic lens with a film bonded to it.