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:
Feb. 24, 2026
Filed:
Oct. 21, 2021
Essilor International, Charenton-le-pont, FR;
Justine Redon, Charenton-le-pont, FR;
Hélène Maury, Charenton-le-pont, FR;
Mamonjy Cadet, Charenton-le-pont, FR;
Nicolas Maitre, Charenton-le-pont, FR;
Essilor International, Charenton-le-Pont, FR;
Abstract
According to the invention, a first coating and a second coating are configured so that the optical system has a colorimetric parameter of evaluation of ghost image visibility lower than a predetermined threshold, said colorimetric parameter of evaluation being based on total ghost image transmission coefficient of at least one ghost image formed by internal reflection of a light beam from a light source between at least the first surface and the second surface and by transmission through the optical system, the total ghost image transmission coefficient being integrated over a visible spectral band and depending on a spectrum of the light source.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile