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:
Feb. 03, 2015
Filed:
May. 28, 2008
Alessandro Scordino, Venezia/Mestre, IT;
Julius Muschawek, Gauting, DE;
Jan Marfeld, Regensburg, DE;
Alessandro Scordino, Venezia/Mestre, IT;
Julius Muschawek, Gauting, DE;
Jan Marfeld, Regensburg, DE;
OSRAM Opto Semiconductors GmbH, Regensburg, DE;
OSRAM Gesellschaft mit beschränkter Haftung, Munich, DE;
Abstract
A light source comprises a light-emitting device to emit electromagnetic radiation from an emitting surface and an optical element having a light input surface, a light output surface and side surfaces connecting the light input surface to the light output surface. The light input surface is located in the optical path of the light-emitting device, the electromagnetic radiation entering the optical element through the light input surface, and the light input surface has a concave curvature and an area being smaller than the area of the light output surface.