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. 30, 2006
Filed:
Nov. 21, 2002
Hans Lichtenstein, Reinheim, DE;
Jann Schmidt, Darmstadt, DE;
Guenther Ittmann, Gross-Umstadt, DE;
Eduard Albrecht, Frankfurt, DE;
Hans Lichtenstein, Reinheim, DE;
Jann Schmidt, Darmstadt, DE;
Guenther Ittmann, Gross-Umstadt, DE;
Eduard Albrecht, Frankfurt, DE;
ROEHM GmbH & Co. KG, Darmstadt, DE;
Abstract
The invention relates to an illuminative device essentionaly comprising a light source and a diffusing cover which is assigned to the light source and is made of colored plastic. The light source consites of one or several light-emitting diodes (LEDs) emitting a colored an substantially monocromatic light. The diffusing cover assigned thereto has a transmition (DIN 5036) of at least 35% and a reflection (DIN 5036) of at least 15% with the wavelength of the light-emitting diode operating at relative maximum energy.