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:
Jan. 07, 2025
Filed:
Mar. 04, 2020
Thales, Courbevoie, FR;
Raphaël Aubry, Palaiseau, FR;
Gaëlle Lehoucq, Palaiseau, FR;
Raphaël Guillemet, Palaiseau, FR;
Julie Cholet, Palaiseau, FR;
José-Paolo Martins, Palaiseau, FR;
Mane-Si-Laure Lee Bouhours, Palaiseau, FR;
Anne Delboulbe, Palaiseau, FR;
THALES, Courbevoie, FR;
Abstract
An optical element is provided, which is transparent at a wavelength of use λ, and which has a super-hydrophobic nanostructured surface that has an anti-reflection property, the surface having an array of pads. —The pads have a nanoscale width, a height h, an aspect ratio of less than 1/2, and the pitch p of the array is such that p<h and the element comprises a top layer of thickness less than h/5 which covers without discontinuity and conformally the nanostructured surface, the top layer being obtained via a step of annealing at a temperature comprised between 500° C. and 1200° C. and being in a material of a hardness greater than the hardness of the material of said nanostructured surface.