SYSTEMS AND METHODS FOR DETECTING FOREIGN BODIES ON A WINDOW
A droplet sensor system is configured to detect the presence of droplets or other foreign bodies on the surface of a window. The sensor system emits light rays that are coupled into the window, where the window serves as a waveguide that guides the confined electromagnetic radiation across the windo...
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Main Authors | , |
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Format | Patent |
Language | English French German |
Published |
11.01.2023
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Subjects | |
Online Access | Get full text |
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Summary: | A droplet sensor system is configured to detect the presence of droplets or other foreign bodies on the surface of a window. The sensor system emits light rays that are coupled into the window, where the window serves as a waveguide that guides the confined electromagnetic radiation across the window. Foreign bodies present on the surface of the glass outcouples a subset of the light as it propagates across the window, attenuating the power of outcoupled light measured at a photodetector mounted near an edge of the window. The system initiates a notification or a control action in response to detecting this attenuation of power due to outcoupling of the propagating light by foreign bodies. |
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Bibliography: | Application Number: EP20190196217 |