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:
Jan. 03, 2012
Filed:
Sep. 29, 2008
Kurt Hahn, Giessen, DE;
Michael Hofmann, Heuchelheim, DE;
Christof Krampe-zadler, Castrio-Rauxel, DE;
Kurt Hahn, Giessen, DE;
Michael Hofmann, Heuchelheim, DE;
Christof Krampe-Zadler, Castrio-Rauxel, DE;
Vistec Semiconductor Systems GmbH, Weilburg, DE;
Abstract
An illumination mean for the inspection of flat substrates is disclosed. The flat substrate includes an upper edge area, a lower edge area and a front area. The illumination means is formed as an annular segment and comprises an opening into which at least the edge area of the flat substrate extends. A plurality of light sources are arranged on an annular segment in a housing. Inside the housing, a reflective element is provided so that the light from the light sources does not impinge perpendicularly on the upper edge area, the lower edge area and the front area of the flat substrate.