Université Jean Monnet Saint-étienne

Centre National De La Recherche Scientifique

H.e.f.

Hydromecanique Et Frottement

Manutech-usd

Centre National De La Recherche Scientifique-cnrs

Université Jean Monnet De Saint-etienne

Laurent Dubost

Yves Jourlin

Maxime Bichotte

Xxx Sedao

Thomas Kämpfe

Cécile Tessier

Celine Lavaud

Michel Joseph Pierre Marie Martin

An optical device for transmitting/reflecting electromagnetic radiation in a wavelength range of an electromagnetic spectrum. The optical device includes a substrate made of a first material, a coating layer made of a second material that is different from the first material, and a a plurality of cavities formed in surface of the device. The plurality of cavities extend through the coating layer and are partially sunk into the substrate.

Optical device with surface texturing extending through coating layer into substrate

An optical device suitable for transmitting/reflecting electromagnetic radiation in a wavelength range of the electromagnetic spectrum. The device comprises at least a first coating layer made of a first material, a substrate made of a material different from the first material, and surface texturing forming cavities in the device. A lower layer, disposed directly below the first coating layer, is either a second coating layer made of a material different from the first material or the substrate itself. The lower layer has a predetermined thickness. The optical device has cavities that extend through the first coating layer and are sunk into the lower layer through at least part of its thickness. This structure enhances the optical properties of the device for specific applications in electromagnetic radiation transmission or reflection.

Multilayer optical device with surface texturing and extended cavities for electromagnetic radiation

A metal foil including on at least one of its sides a layer of a material including: a metal or a metal alloy, carbon, hydrogen, and optionally oxygen, the atomic percentage of the metal or of the metals of the alloy in the material ranging from 10 to 60%, the atomic percentage of carbon in the material ranging from 35 to 70%, the atomic percentage of hydrogen in the material ranging from 2 to 20%, and the atomic percentage of oxygen if present in the material being less than or equal to 10%. The metal foil can be used in the manufacture of a cathode of a lithium-ion electrochemical cell. The deposition of this layer reduces the internal resistance of the cell.

Metal foil for electrochemical element electrode comprising a material, based on ti, c and h

The invention relates to a system () for producing an optical mask () for surface microtexturing, said system () comprising: a substrate () having a surface () that is to be textured; a layer of material () which covers the surface () of the substrate () and has an outer surface () that is exposed to the outside environment; and a generating and depositing device for generating and depositing droplets () on the outer surface () of the layer of material (), in a specific arrangement () under condensation, forming the optical mask () on the outer surface () of the layer of material (). The invention also relates to a treatment plant comprising a system () of said type. The invention further relates to a method for producing a mask as well as to a surface microtexturing method.

System and method for producing an optical mask for surface microtexturing, and surface microtexturing plant and method

The invention relates to a system () for producing an optical mask () for surface treatment, in particular surface microtexturing, said system () comprising: a layer of material () which has an outer surface () that is exposed to the outside environment; and a generating and depositing device for generating and depositing droplets () on the outer surface () of the layer of material () in which a specific arrangement (), forming the optical mask () on the outer surface () of the layer of material (). The invention also relates to a treatment plant comprising a system () of said type. The invention further relates to a method for producing a mask as well as to a method for surface treatment.

System and method for producing an optical mask for surface treatment, and surface treatment plant and method

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Chamboeuf, France

Laurent Dubost