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. 25, 2014
Filed:
Feb. 09, 2009
Applicants:
Radu Surdeanu, Roosbeek, BE;
Viet Nguyen Hoang, Leuven, BE;
Benoit Bataillou, Brussels, BE;
Pascal Bancken, Opwijk, BE;
David Van Steenwinckel, Holsbeek, BE;
Inventors:
Radu Surdeanu, Roosbeek, BE;
Viet Nguyen Hoang, Leuven, BE;
Benoit Bataillou, Brussels, BE;
Pascal Bancken, Opwijk, BE;
David Van Steenwinckel, Holsbeek, BE;
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/02 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0866 (2013.01);
Abstract
A method of determining the dominant output wavelength of an LED, includes determining an electrical characteristic of the LED which is dependent on the voltage-capacitance characteristics, and analyzing the characteristic to determine the dominant output wavelength.