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:
Jul. 22, 2025
Filed:
Jul. 13, 2021
Essilor International, Charenton-le-Pont, FR;
Helene Starynkevitch, Charenton-le-Pont, FR;
Adele Longo, Charenton-le-Pont, FR;
Essilor International, Charenton-le-Pont, FR;
Abstract
A system for determining a rounded value of an optical feature of an ophthalmic lens including determining a first test value and a first variation increment, performing a first trial of said subjective test wherein two first different optical situations are determined based on at least the first test value, determining a second test value based on the first test value, on the first variation increment and on the result of the first trial, performing a second trial of said subjective test wherein two second different optical situations are determined based on at least the second test value, determining an intermediary value based on the result of the first trial and on the result of the second trial, and determining said rounded value by rounding said intermediary value to a reference value, said rounding modifying the dioptric correction of said ophthalmic lens by less than a predetermined basic dioptric value.