首页|Researchers Submit Patent Application, 'Glass Assembly Including A Performance-Enhancing Feature And Method Of Manufacturing Thereof', for Approval (USPTO 20240010549)
Researchers Submit Patent Application, 'Glass Assembly Including A Performance-Enhancing Feature And Method Of Manufacturing Thereof', for Approval (USPTO 20240010549)
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News editors obtained the following quote from the background information supplied by the inventors:“Glass assemblies used in automotive contexts often include performance-enhancing features. Typically,these performance-enhancing features include a substance deposited on the glass assembly to add additionalfunctionality to the glass assembly and/or improve the aesthetic appearance of the glass assembly. Examplesof performance-enhancing features include conductive features (such as heating grids or antennas), opaqueboundary features (such as black bands or optical sensor boundaries), or other functional coatings (such asanti-reflective coatings, IR transparent coatings, hydrophobic coatings, oleophobic coatings, or oleophiliccoatings). Often, performance-enhancing features are formed by depositing a substance (such as a mixtureof ceramic frit and other substances, such as pigments or conductive particles) onto a flat glass substrateand subsequently firing the glass substrate at temperatures in excess of 500 degrees Celsius to fuse thesubstance into the glass. The glass substrate including the fused substance is typically fired at temperaturesin excess of 600 degrees Celsius to bend the substrate into a desired shape. Problematically, when glassassemblies including these substances are fired at these high temperatures, the portion of the glass assemblyincluding the substance absorbs heat differently than the rest of the glass assembly which does not includethe substance. For example, the portion of the glass assembly including the substance is at a temperatureof 650 degrees Celsius during firing, while the rest of the glass assembly (not including the substance) is ata temperature of 640 degrees Celsius during firing. Accordingly, the portion of the glass assembly includingthe substance will have a softness that is different than the softness of the rest of the glass assembly whichdoes not include the substance. The different softness of the portion of the glass assembly including thesubstance and the softness of the rest of the glass assembly causes each portion of the glass assemblyto deform differently, thereby causing significant optical distortion of the glass assembly and affecting the strength of the glass assembly. This optical distortion has a particularly adverse effect on the performanceof optical sensors used for semi-autonomous or autonomous driving, including cameras and LIDAR sensors.
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