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:
May. 25, 2021
Filed:
Oct. 17, 2017
Saint-gobain Glass France, Courbevoie, FR;
Benjamin Kaplan, Aachen, DE;
Klaus Schmalbuch, Aachen, DE;
Stefan Droste, Herzogenrath, DE;
Christian Effertz, Aachen, DE;
SAINT-GOBAIN GLASS FRANCE, Courbevoie, FR;
Abstract
A laminated motor-vehicle windshield includes two glass sheets that are joined together by an interlayer made of a thermoplastic of refractive index n. The thermoplastic interlayer includes a cut-out section in the upper portion of the windshield. The cut-out section is filled with a multilayer film forming a waveguide for guiding waves from a bottom point of entrance of light radiation on the face of the windshield exposed to the exterior of the vehicle to a top point of exit of the radiation on the face of the windshield arranged toward the passenger compartment of the vehicle. The multilayer film includes layers of a first material of refractive index nsuch that n≥nand of a second material that at least partially reflects the light radiation. The second material is placed on either side of the layer of first material to confine, in the latter, the light radiation.