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. 22, 2014
Filed:
Jul. 27, 2010
Joerg Birkholz, Drasdo, DE;
Rolf Eckl, Berlin, DE;
Uwe Frost, Berlin, DE;
Kay Koester, Fredersdorf, DE;
Zeljko Marincic, Berlin, DE;
Norbert Poepplow, Eichwalde, DE;
Joerg Birkholz, Drasdo, DE;
Rolf Eckl, Berlin, DE;
Uwe Frost, Berlin, DE;
Kay Koester, Fredersdorf, DE;
Zeljko Marincic, Berlin, DE;
Norbert Poepplow, Eichwalde, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A light signal contains a semiconductor light source and a convex lens system for representing signal aspects, especially on rail-bound traffic routes. In order to eliminate the need for monochrome semiconductor light sources, the semiconductor light source is a white point light source. A signal aspect-specific color filter is provided in the aperture region of the point light source.