Centre National De La Recherche Scientifique

Saint-gobain Glass France

Essilor International (compagnie Generale D'optique)

Ecole Polytechnique

Khalid Lahlil

Jean-Pierre Boilot

Thierry Gacoin

Jacques Peretti

Arnaud Huignard

Frédéric Chaput

Sandrine Ithurria

Georges Lampel

Jong Wook Kim

Nathalie Landraud

Viatcheslav Safarov

A method of fabricating a transparent and birefringent mineral solid thin layer comprises the following steps: a) preparing a colloidal solution constituted by anisotropic mineral nanoparticles in suspension in a dispersion liquid; b) depositing the colloidal solution on a surface of a substrate by spreading as a thin layer while applying directional shear stress tangentially to the surface of the substrate so as to deposit the colloidal solution as a liquid thin layer on the surface of the substrate, the value of the shear stress and the concentration of mineral nanoparticles in the colloidal solution being determined in such a manner as to cause the anisotropic mineral nanoparticles to be aligned along the direction of the shear stress tangential to the surface of the substrate; and c) drying the liquid thin layer by evaporating the dispersion liquid.

Method of manufacturing a transparent and birefringent thin solid mineral layer and optic component with a transparent and birefringent thin solid mineral layer

Hydrophobic treatment composition comprising one or more compounds, as a mixture, corresponding to the formula in which

Hydrophobic treatment composition and glazing

The invention generally concerns a method involving emitting polarization light waves through an aperture with a dimension of maximum size lower than or equal to 100 nm, wherein the aperture is circumferentially bound by an opaque area that prevents the light waves from being propagated outside the aperture during use, and wherein the emitted polarization light waves (1) contact a material layer comprising a photosensitive compound whose surface is located at a distance lower than 100 nm from said aperture, and (2) induce a topographic modification of the material layer. In this manner, a stable structure is printed in relief in the material layer without requiring any additional development step. The invention is applicable, in certain embodiments, to ophthalmic optics.

Method for printing a near field photoinduced stable structure, and optical fibre tip for implementing same

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Orsay, France

Khalid Lahlil