The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 24, 2002
Filed:
Feb. 28, 2000
Applicant:
Inventor:
Rainer Pientka, Renchen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 2/149 ;
U.S. Cl.
CPC ...
G01N 2/149 ;
Abstract
A sensor device is described for detecting wetting, in particular rainfall and soiling, on a windshield that has at least two, preferably eight, transmitters and at least one receiver for receiving light emitted by the respective transmitters. The at least two transmitters are arranged concentrically around the at least one receiver. A base area is defined by the at least two transmitters and the at least one receiver, with the base area being at least a sector of a circle. This reduces an outer dimension of the sensor device and improves a ratio of sensitive area to base area of the sensor device.