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:
Sep. 20, 2005
Filed:
Nov. 20, 2001
Günther Sejkora, Schwarzenberg, AT;
Jürg Zumtobel, Dornbirn, AT;
Günther Sejkora, Schwarzenberg, AT;
Jürg Zumtobel, Dornbirn, AT;
Zumtobel Staff GmbH, Dornbirn, AT;
Abstract
There is proposed a luminaire () with which the exit angle of the light beams is restricted for the purpose of anti-dazzling. Further, in accordance with the invention there is attained in a simple manner and in particular without the employment of a light guide element a uniform emission of light over the entire surface of an optical element (--) arranged before or in the emission opening () of the luminaire (). The optical element (--) has a plate-like core () of transparent material, which is occupied on one side with microprisms () which, with the formation of furrows ()—starting from their roots—taper.