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. 13, 2015
Filed:
Jun. 09, 2011
Applicants:
Eike Berg, Berlin, DE;
Rolf Eckl, Berlin, DE;
Norbert Poepplow, Eichwalde, DE;
Inventors:
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Primary Examiner:
Int. Cl.
CPC ...
G08B 5/22 (2006.01); G08B 5/36 (2006.01); B61L 5/18 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
G08B 5/36 (2013.01); B61L 5/1827 (2013.01); B61L 5/1881 (2013.01); H05B 33/0869 (2013.01); B61L 2207/02 (2013.01);
Abstract
An LED light signal, in particular an LED railway light signal, contains a signal generator for generating varicolored light spots. The LEDs are embodied as multicolor LEDs, in particular RGB LEDs—Red/Yellow/Blue LEDs. In order to be able to utilize the possibilities for color mixing and thus for realizing a large number of color variants for safety-relevant signaling technology, the signal generator has at least one optical sensor for monitoring a color locus and a light intensity reliably in terms of signaling technology.