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:
Aug. 12, 2025
Filed:
May. 11, 2021
Essilor International, Charenton-le-Pont, FR;
Samy Hamlaoui, Charenton le Pont, FR;
Sylvain Chene, Charenton le Pont, FR;
Bruno Fermigier, Charenton le Pont, FR;
Essilor International, Charenton-le-Pont, FR;
Abstract
The disclosure relates to an optical article which comprises a hollow chamber and a separator separating the hollow chamber into a first subspace and a second subspace. The separator comprises an aperture. The optical article comprises a deformable membrane, attached, in the second subspace, along a closed line surrounding the aperture. The optical article is switchable, by deformation of the membrane, between at least three states (ST, ST, ST). Each state corresponds to a different optical function. The disclosure also comprises a corresponding method for switching said optical article between at least two of the three states.