SENSOR SYSTEM IN A MOTOR VEHICLE
First Claim
1. A sensor system for detecting wetting of a window, comprising:
- a photodetector having multiple light-sensitive elements; and
a light source for emitting light to the window so that a portion of the light is reflected at the window, and another portion of the light passes through the window;
wherein the light source and the photodetector element are situated so that a portion of the light from the light source which passes through the window is reflected at the wetting and strikes a portion of the light-sensitive elements, andwherein the light source includes a lighting element which is set up to irradiate into a transparent body, the transparent body having a surface which has defined unevennesses for the diffuse radiation of the irradiated light.
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Accused Products
Abstract
A sensor system is described for detecting wetting of a window includes a photodetector having multiple light-sensitive elements and a light source for emitting light to a detection region of the window in such a way that a portion of the light is reflected at the window, and another portion of the light passes through the window. The light source and the light-sensitive element are situated in such a way that a portion of the light from the light source which passes through the window is reflected at the wetting and strikes a portion of the light-sensitive elements. The light source includes a lighting element which is set up to irradiate into a transparent body. The transparent body has a surface which has defined unevennesses for the diffuse radiation of the irradiated light.
36 Citations
12 Claims
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1. A sensor system for detecting wetting of a window, comprising:
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a photodetector having multiple light-sensitive elements; and a light source for emitting light to the window so that a portion of the light is reflected at the window, and another portion of the light passes through the window; wherein the light source and the photodetector element are situated so that a portion of the light from the light source which passes through the window is reflected at the wetting and strikes a portion of the light-sensitive elements, and wherein the light source includes a lighting element which is set up to irradiate into a transparent body, the transparent body having a surface which has defined unevennesses for the diffuse radiation of the irradiated light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification