Parrot

Varioptic S.a.

Varioptic

Geraldine Malet

Mathieu Maillard

Franck Amiot

Matthias Stefan Ober

Daniel Lawrence Dermody

Gaëtan Liogier D'ardhuy

An electrowetting optical device is provided comprising a conductive liquid and a non-conductive liquid, the liquids being non miscible, having different refractive indices and forming an interface, wherein the conductive liquid comprises from 5% by weight of a fluorinated salt, based the total weight of the conductive liquid. An apparatus comprising said electrowetting optical device is described as well.

Electrowetting optical device

The present invention relates to a multi-phase liquid composition comprising a conductive fluid and a non-conductive fluid, the non-conductive fluid being immiscible in the conductive fluid, the composition having a mean arithmetic cinematic viscosity of between about 1.5 cSt and about 40 cSt, within a temperature range of about &#x2212;20&#xb0; C. to about +70&#xb0; C. The invention also pertains to an optical electrowetting device comprising said multi-phase liquid composition, as well as an optical lens driven by electrowetting, and apparatus comprising the same.

Multi-phase liquid composition and optical electrowetting device that incorporates the same

The present invention relates to the use of a bromine anion in the conductive fluid of an optical electrowetting device, especially a variable focus optical lens driven by electrowetting. The invention also pertains to a multi-phase liquid composition comprising a bromine anion, as well as an optical lens driven by electrowetting comprising the same.

Use of bromine anions in an optical electrowetting device

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Villeurbanne, France

Geraldine Malet