Essilor International (compagnie Generale D'optique)

Centre National De La Recherche Scientifique

Essilor International

Raymond Mercier

Benjamin Rousseau

Thierry Bonnin

Jean Taboury

Sylvain Perrot

A linear fluidic actuator comprising an upper actuation deformable surface suitable to induce a displacement in an actuation direction L and a wall delimiting an internal cavity wherein the shape of the actuator is a pillar; the wall, the cavity and the upper surface of a base form the lower part of said pillar, where his the highest dimension of the internal cavity at rest according to the actuation direction L; a part forms the upper part of said pillar where the upper surface of said upper part is the upper actuation deformable surface, the bottom surface of said upper part closes the upper part of the cavity so as to form an upper surface of said cavity and where his the distance at rest from the top of the upper surface of the internal cavity to the upper actuation deformable surface; the height ratio h/his comprised between 0.2 and 10; a fluidic inlet is provided and suitable for introducing a fluid in the internal cavity.

Linear fluidic actuator

An adjustable optical device comprising at least a deformable optical surface activated by linear fluidic actuators comprising: a material layer comprising an upper surface on which the optical surface is provided and a bottom surface; an actuator layer comprising a plurality of linear fluidic actuators separated by at least one cavity, where at least one linear fluidic actuator is a pillar extending in the actuation direction (L) which is non parallel to the bottom surface of the material layer, said pillar comprising a wall delimiting an internal cavity and where an upper surface of said pillar is continuously linked to a zone of the bottom surface of the material layer; fluidic inlets suitable for introducing a fluid in at least one internal cavity of a pillar linear fluidic actuator.

Optical device with adjustable optical surface

Growing community of inventors

Antony, France

Raymond Mercier