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:
Nov. 17, 2015
Filed:
Mar. 07, 2014
Applicant:
Goodrich Lighting Systems Gmbh, Lippstadt, DE;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60Q 1/14 (2006.01); H05B 33/08 (2006.01); B60Q 3/00 (2006.01); H05B 39/04 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0848 (2013.01); B60Q 3/00 (2013.01); H05B 33/0803 (2013.01); H05B 33/0845 (2013.01); H05B 33/0851 (2013.01); H05B 39/041 (2013.01); H05B 39/047 (2013.01); Y02B 20/383 (2013.01);
Abstract
A dimmable LED reading light unit, in particular for a passenger transportation vehicle, such as an airplane, a bus or a ship, comprises an input which is connectable to a potentiometer that outputs a direct voltage having a voltage intensity corresponding to a selected potentiometer position; a load current source being configured to generate a predetermined load current; a current controller providing an operating current for operating at least one LED; and an electronic measuring and control unit; wherein the load current source and the current controller are connected to the input in parallel.