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. 10, 2018
Filed:
Mar. 24, 2015
Webster Capital Llc, Wilmington, DE (US);
Sébastien Bolis, Crolles, FR;
Webster Capital, LLC, Wilmington, DE (US);
Abstract
An optical device having variable focal length may include a deformable membrane, a support to which a peripheral anchoring area of said membrane is connected, and a cavity filled with a constant volume of fluid. The cavity being delimited by the membrane, a base opposite the membrane and a wall of the support extending between the base and the membrane. The optical device further includes an actuation device of a region of the membrane located between the peripheral anchoring area and a central part of the membrane, configured to bend said membrane by application of electrical actuation voltage so as to displace some of the volume of fluid. The membrane comprises a stiffening structure comprising cells which delimit, in the central part of said membrane, at least two deformable regions each constituting a diopter of a respective elementary optical system, each elementary optical system comprising said respective deformable region of the membrane, the fluid and the base of the cavity.