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. 28, 2020
Filed:
Jun. 25, 2014
Essilor International (Compagnie Generale D'optique), Charenton-le-Pont, FR;
Frederic Dubois, Charenton-le-Pont, FR;
Sebastien Maurice, Charenton-le-Pont, FR;
Essilor International, Charenton-le-Pont, FR;
Abstract
A method for producing an ophthalmic lens includes a step of laser marking in order to produce permanent etchings on one surface of the lens, at least one predefined step subsequent to the marking step and implementing extreme thermal stress that is applied to the surface, and a step of determining an operating point (PF) of a laser marking machine () configured to implement the marking step from geometric characteristics (Di) of the etchings to be made, the determining step including the steps of determining () a value (CPM) representative of the deformation of the lens on at least one treatment area of the surface, from the stress and data relative to a predetermined material from which the lens is formed, and of deducing () the operating point from the value representative of deformation and from the geometric characteristics.