Sensor system in a motor vehicle
First Claim
1. A sensor system for detecting a 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, the light source including;
a transparent body having a surface which has defined unevenness, anda lighting element which is set up to irradiate into the transparent body in a direction that is substantially perpendicular to a radiation direction of the light source,wherein the defined unevenness is for diffuse radiation of the irradiated light;
wherein the light source and the photodetector 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 multiple light-sensitive elements.
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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.
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Citations
20 Claims
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1. A sensor system for detecting a 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, the light source including; a transparent body having a surface which has defined unevenness, and a lighting element which is set up to irradiate into the transparent body in a direction that is substantially perpendicular to a radiation direction of the light source, wherein the defined unevenness is for diffuse radiation of the irradiated light; wherein the light source and the photodetector 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 multiple light-sensitive elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A sensor system for detecting a wetting of a window of a motor vehicle, comprising:
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a camera having a two-dimensional digital image sensor and a lens, the digital image sensor for scanning an image; a first mirror; 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, the light source including; a transparent body having a surface which has defined unevenness, and a lighting element which is set up to irradiate into the transparent body in a direction that is substantially perpendicular to a radiation direction of the light source, wherein the defined unevenness is for diffuse radiation of the irradiated light; wherein the light source and the camera 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 the digital image sensor. - View Dependent Claims (20)
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Specification