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:
Oct. 30, 2012
Filed:
Aug. 20, 2008
Erwin Melzner, Frasdorf, DE;
Regine Kraemer, Munich, DE;
Michael Haubmann, Vienna, AT;
Johann Hochreiter, Neulengbach, AT;
Erwin Melzner, Frasdorf, DE;
Regine Kraemer, Munich, DE;
Michael Haubmann, Vienna, AT;
Johann Hochreiter, Neulengbach, AT;
Arnold & Richter Cine Technik GmbH & Co. Betriebs KG, Munich, DE;
Abstract
A lighting device comprising a plurality of lighting modules which include a module carrier on which a light source with a plurality of controllable light-emitting diodes emitting light of different wavelengths and arranged on a board, a temperature sensor and a module electronic are arranged. Said module electronic contains a digital circuit with a microcontroller for the local and autonomous signal processing, which actuates the LEDs in dependence on the temperature such that the brightness, color and chrominance of the light mixture composed of the LEDs emitting light of different wavelengths is constant. Said lighting modules being connected with other lighting modules or an external controller via a digital interface for transmitting the board temperature of the respective lighting module detected by means of the temperature sensor. A central master module or the external controller actuates the lighting modules such that a uniform brightness is obtained over the radiating surface.