The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 2025
Filed:
Oct. 26, 2020
Multilayer optical device with surface texturing and extended cavities for electromagnetic radiation
Hydromecanique ET Frottement, Andrezieux-Boutheon, FR;
Manutech-usd, Saint-Etienne, FR;
Université Jean Monnet Saint-etienne, Saint-Etienne, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Hydromecanique et Frottement, Andrezieux-Boutheon, FR;
Manutech-USD, Saint-Etienne, FR;
Université Jean Monnet Saint-Etienne, Saint-Etienne, FR;
Centre National de la Recherche Scientifique (CNRS), Paris, FR;
Abstract
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.