Patent · US Active

Three-state optical article and method for controlling same

US12386202B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

Essilor International · FR

Inventors

Samy HAMLAOUI · Charenton-le-Pont, FR
Sylvain Chene · Charenton-le-Pont, FR
Bruno FERMIGIER · Maisons-Alfort, FR

Key dates

Filing date	May 11, 2021
Grant date	Aug 12, 2025
Priority date	—
Expiry date	Feb 16, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG02B26/004
WIPO fieldOptics
WIPO sectorInstruments

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 (ST1, ST2, ST3).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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.