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:
Aug. 26, 2025
Filed:
Oct. 11, 2019
Covestro Deutschland Ag, Leverkusen, DE;
Ulrich Grosser, Kürten, DE;
Alexander Meyer, Düsseldorf, DE;
Thomas Pfingst, Tönisvorst, DE;
Peter Capellen, Krefeld, DE;
Rafael Oser, Krefeld, DE;
Rainer Hagen, Leverkusen, DE;
Tobias Sadler, Monheim Am Rhein, DE;
Vincenzo Taravella, Curno, IT;
Andrea Crotti, Curno, IT;
Stefania Scotuzzi, Brembate di Sopra, IT;
Covestro Deutschland AG, Leverkusen, DE;
Abstract
A sensor system comprises a LiDAR unit, a camera for visible light and a cover through which light arrives at the LiDAR unit and the camera. The cover comprises a layer containing dyes. The light transmission of the cover in the range from 380 nm to 780 nm is 3% to 25% and in the range from 380 nm to 1100 nm is 40% or more. The attenuation of the LiDAR signal by the cover is such that at least 65% of the original signal intensity reaches the LiDAR detector. The layer containing dyes contains a composition comprising i) at least 70% by weight of a transparent thermoplastic polymer, ii) at least one green and/or red dye and iii) at least one red and/or violet dye. The product of the sum of the weight % fractions of dyes ii) and iii) and the thickness of the layer containing dyes is 0.041 to 0.12 wt % mm. Finally, the composition contains 0% to 0.0005% by weight of IR absorbers.