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:
Jul. 29, 2025
Filed:
Dec. 21, 2020
Saint-gobain Glass France, Courbevoie, FR;
Théo Chevallier, Paris, FR;
SAINT-GOBAIN GLASS FRANCE, Courbevoie, FR;
Abstract
An optical system includes an optical assembly including a substrate having two opposite main faces and an electrochemical functional device with electrically controllable optical and/or energetic properties formed on a main face, this optical assembly having an initial color state with an initial color value in reflection at a first reflection angle, a coating for controlling color in reflection formed on the other main face and forming an external face of the system, the optical system having a final color state with a final color value in reflection at this first angle, this final color state being closer than the initial color state to a reference color state having a reference color value at the first angle, this corresponding to a variation in color distance between the initial and reference values, and between the final color and the reference values smaller than 0 at the first angle.