Patent · US Active

Sensor system in a motor vehicle

US9120464B2 · kind B2 · utility

24Cited by

27References

20Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Andreas S. Pack · Wauwatosa, US
Axel Schwarz · Baden-Baden, DE
Bruno Hodapp · Achern, DE
Norbert Hog · Appenweier, DE
Henry Blitzke · Laufenburg (Baden), DE

Key dates

Filing date	Apr 21, 2011
Grant date	Sep 1, 2015
Priority date	—
Expiry date	May 20, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG01N2201/06126
WIPO fieldTransport
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.