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:
Dec. 13, 2016
Filed:
Sep. 21, 2012
Martin Professional A/s, Aarhus N, DK;
Szymon Beczkowski, Aalborg, DK;
MARTIN PROFESSIONAL A/S, Aarhus N, DK;
Abstract
The present invention relates to an illumination device including a number of LEDs and a processor for receiving an input signal and generating an activation signal for at least one of the LEDs based on the input signal. The illumination device further comprises an LED driver for obtaining the voltage across and current through the LED. The processor may generate the activation signal based on the voltage, the current and a current-voltage model related to the LED. The current-voltage model defines a relationship between the current, the voltage and the colorimetric properties of light emitted by the LED. The present invention relates also to a method of controlling and a method of calibrating such an illumination device.