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:
May. 17, 2011
Filed:
May. 19, 2006
Gunnar Klick, Regensburg, DE;
Hubert Ott, Bad Abbach, DE;
Franz Schellhorn, Regensburg, DE;
Mario Wanninger, Regensburg, DE;
Georg Bogner, Lappersdorf, DE;
Gunnar Klick, Regensburg, DE;
Hubert Ott, Bad Abbach, DE;
Franz Schellhorn, Regensburg, DE;
Mario Wanninger, Regensburg, DE;
Georg Bogner, Lappersdorf, DE;
Osram Opto Semiconductors GmbH, Regensburg, DE;
Abstract
An illumination device is specified which has a light source () suitable for coupling divergent electromagnetic radiation () into an optical waveguide (), the electromagnetic radiation () being guided in the optical waveguide () on the basis of total reflection the optical waveguide () being suitable for changing a main radiating direction () of the electromagnetic radiation (), and the optical waveguide () being formed in one piece. Light-emitting diodes are preferably used as the light source (). The illumination device is particularly well suited to the backlighting of displays.