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:
Apr. 07, 2015
Filed:
Aug. 26, 2008
Christian Luecke, Oberkochen, DE;
Peter Reimer, Ellwangen, DE;
Christian Luecke, Oberkochen, DE;
Peter Reimer, Ellwangen, DE;
Carl Zeiss Meditec AG, Jena, DE;
Abstract
A light trap, a device for coupling a first beam path to a second beam path, and an illumination device for an optical observation device, as well as an optical observation device. The light trap is for eliminating or preventing stray light, e.g., in the form of scattered light. In order to be able to further improve the elimination of disruptive stray light in the form of scattered light, the light trap is configured in a special way. It has a filter element, particularly a neutral filter element, which is characterized in that an incident light face of the filter element has a concave radius, whereby the incident light face has a specific curvature.