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:
Mar. 03, 2026
Filed:
Jun. 29, 2021
Essilor International, Charenton-le-pont, FR;
Marie Dubail, Saint Maurice, FR;
Essilor International, Charenton-le-pont, FR;
Abstract
The invention provides a method for determining a first filter intended to be placed in front of an eye of a wearer and a second filter, different from the first filter, intended to be placed in front of an eye of a wearer, the method comprising the following steps: —providing a first transmission spectrum; —determining metameric transmission spectra of said first transmission spectrum; —determining said first filter based on said first transmission spectrum or based on a first metameric transmission spectrum selected from the metameric transmission spectra; and —determining said second filter based on a second metameric transmission spectrum selected from the metameric transmission spectra.