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. 15, 2009
Filed:
Mar. 21, 2008
Bernd Mack, Remshalden, DE;
Bernd Mack, Remshalden, DE;
odelo GmbH, Schwaikheim, DE;
Abstract
An optoelectronic sensor device is described for recording of soiling on a transparent cover, with at least one light source that emits at least two light beams, a test surface arranged in the cover, having a concave surface exposed to environmental effects, through which the light beams emerge and reenter, as well as at least one receiver that measure the radiation powers of the light beams, on which the light beams are imaged independently of each other after reentry. The test surface has at least two areas with different microstructurings, in which a first microstructuring is designed, so that a liquid applied to the area provided with the first microstructuring is held together drop-like, and a second microstructuring is designed, so that a liquid applied to the area provided with the second microstructuring is distributed film-like, in which at least a first light beam emerges and reenters through the first area and at least a second light beam emerges and reenters through the second area, so that by comparison of the radiation powers of the two light beams, a conclusion can be drawn concerning the transparency of the cover exposed to soiling. In addition a method is described for determination of the transparency of soiling by a transparent surface exposed to environmental effects.