Centre National De La Recherche Scientifique

Institut Mines-Telecom

Université Du Mans

Institut De Recherche Technologique Jules Verne

Institut Mines Telecom-Imt Atlantique-Bretagne-Pays De La Loire

Kevin Heggarty

Jean-Louis De Bougrenet De La Tocnaye

Vincent Nourrit

Pascal Picart

Julien Le Meur

Julien Poittevin

The contact lens () for augmented reality comprises: a transparent body () designed to be placed on an eye (); and at least one augmented reality module comprising an optical source () attached to the transparent body () and designed to emit a light into the transparent body, and an optical element () attached to the transparent body () and designed to receive the light from the optical source () and send it in the direction of the eye (). The optical element () is a hologram designed to diffract the received light as a holographic image in the direction of the eye ().

Contact lens for augmented reality and method thereof

Some embodiments are directed to a system for measuring vibrations of a surface of a mechanical part, by digital holography. The system includes a source of radiation emitting in a predetermined range of frequencies, a first separator element configured to define a first incident ray and a reference ray, a module for shaping a second incident ray from the first incident ray, and an optical element configured to make the reference ray and a radiation produced by a reflection of the incident ray on the surface of the mechanical part interfere. The module for shaping the second incident ray includes diffracting optical elements having a diffraction structure to diffract the incident radiation. The structure is from a polymer, sol-gel or photoresin material resting against a glass substrate, the structure including elements etched in a plane parallel and/or orthogonal to the substrate, with dimensions from 100 nanometres to 100 micrometres.

Projection system for measuring vibrations

Growing community of inventors

Lanrivoare, France

Kevin Heggarty