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:
Dec. 22, 2009
Filed:
May. 08, 2008
Applicants:
Joachim Gaessler, Donaueschingen, DE;
Christian Konz, Oehningen, DE;
Harald Richter, Constance, DE;
Inventors:
Assignee:
Intelligente Optische Sensoren und Systeme GmbH, Radolfzell, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/55 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention generally relates to a compact, inexpensive-to-manufacture device consisting of few components for optically testing a surface. The zone on the surface that is to be investigated is illuminated by a semitransparent mirror and an aspheric field mirror, employing a telecentric optical train, and at least part of the light reflected or scattered by the surface is imaged onto the entrance pupil of the lens of an electronic camera by the field mirror, via the semitransparent mirror. Images recorded by the camera are analyzed using known image-processing methods.