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:
Nov. 05, 2024
Filed:
Mar. 20, 2019
Agp America S.a., Ciudad de Panama, PA;
Mario Arturo Mannheim Astete, Lima, PE;
Laura Granados Caro, Lima, PE;
AGP America S.A., Panama, PA;
Abstract
The use of camera-based safety systems is growing at a rapid rate in automobiles where they are used to provide lane departure warning, collision avoidance, adaptive cruise control and other functions. As the industry moves towards full autonomous capability, the number of cameras and the resolution are increasing. For proper operation, the cameras require a clear undistorted field of view. Keeping the camera area free of snow and ice has been a problem. A resistive heating circuit is typically used to keep the area clear. For rapid clearing the circuit needs to operate at a high-power level. Due to the temperature dependent index of refraction of the plastic interlayer, severe distortion can result from the non-isothermal heating resulting from the spacing of the circuit elements. The laminate of the invention reduces distortion by removing the interlayer in the camera field of view and replacing with a plastic having a more temperature stable index of refraction.