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:
Nov. 18, 2008
Filed:
Feb. 12, 2005
Armin Rudert, Essen, DE;
Ulrich Pingel, Marl, DE;
Armin Rudert, Essen, DE;
Ulrich Pingel, Marl, DE;
Isra Surface Vision GmbH, Herten, DE;
Abstract
The invention relates to a device and a corresponding method for detecting scratches on the surface () of a material, in particular glass. Said device comprises an illumination unit () and a recording unit (), which register a scanning line () on the surface () of the material and can be displaced in relation to said surface (). In order to more accurately identify scratches, the illumination unit () comprises at least one light strip (), which generates parallel light pools transversally to the scanning line (), said pools being diffuse or quasi-diffuse along the scanning line () and preferably at least one light source (), which generates a diffuse or quasi-diffuse light transversally to the scanning line ().