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:
Apr. 16, 2019
Filed:
Nov. 13, 2013
Essilor International, Charenton-le-Pont, FR;
Pascal Allione, Charenton le Pont, FR;
Jean-Pierre Chauveau, Charenton le Pont, FR;
Daniel Steigelmann, Charenton le Pont, FR;
Essilor International, Charenton-le-Pont, FR;
Abstract
Method for determining the feasibility of an ophthalmic lens by an ophthalmic lens manufacturing process comprising: an ophthalmic lens data providing step, a set of surface parameters providing step, an optical parameters providing step during which a set of n optical parameters (P, P, . . . , P) is provided, n being an integer greater than or equal to 1, each optical parameter Pbeing provided with a tolerance value ε, —a feasibility check determining step, during which the feasibility of the ophthalmic lens by the ophthalmic lens manufacturing process is determined by determining if for i from 1 to n: the value of the derivative of Pwith respect to the jth surface parameter αon the nominal surface and Δαthe value of the jth surface parameter and Aa combination of terms of order greater or equal to 2 for each P.