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. 30, 2013
Filed:
Apr. 06, 2009
Applicants:
Adam Horvath, Varpalota, HU;
Hans Hoschopf, Jennersdorf, AT;
Inventors:
Adam Horvath, Varpalota, HU;
Hans Hoschopf, Jennersdorf, AT;
Assignee:
LedonLighting Jennersdorf GmbH, Jennersdorf, AU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 41/00 (2006.01); G05F 37/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for operating a controlled illumination apparatus, the illumination apparatus comprising at least one pulse-width modulation (PWM)-controlled LED, the method comprising carrying out a duty cycle sweep of the PWM signal driving the LED while sensing at least one parameter indicative of the power consumption of the LED to compute a curve reflecting the duty-cycle dependency of the power efficiency of the LED.