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. 09, 2012
Filed:
Sep. 19, 2007
Reiner Windisch, Pettendorf, DE;
Ralph Wirth, Mintraching-Auhof, DE;
Stefan Groetsch, Lengfeld-Bad Abbach, DE;
Georg Bogner, Lappersdorf, DE;
Guenter Kirchberger, Sinzing, DE;
Klaus Streubel, Laaber, DE;
Reiner Windisch, Pettendorf, DE;
Ralph Wirth, Mintraching-Auhof, DE;
Stefan Groetsch, Lengfeld-Bad Abbach, DE;
Georg Bogner, Lappersdorf, DE;
Guenter Kirchberger, Sinzing, DE;
Klaus Streubel, Laaber, DE;
OSRAM Opto Semiconductors GmbH, Regensburg, DE;
Abstract
An LED semiconductor body includes a number of at least two radiation-generating active layers. Each active layer has a forward voltage, wherein the number of active layers is adapted to an operating voltage in such a way that the voltage dropped across a series resistor connected in series with the active layers is at most of the same magnitude as a voltage dropped across the LED semiconductor body. The invention furthermore describes various uses of the LED semiconductor body.