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. 26, 2010
Filed:
Mar. 20, 2007
Dieter Bokor, Taufkirchen, DE;
Andries Ellens, Den Haag, NL;
Günter Huber, Schrobenhausen, DE;
Frank Jermann, München, DE;
Manfred Kobusch, Munich, DE;
Michael Ostertag, Munich, DE;
Wolfgang Rossner, Holzkirchen, DE;
Franz Zwaschka, Ismaning, DE;
Dieter Bokor, Taufkirchen, DE;
Andries Ellens, Den Haag, NL;
Günter Huber, Schrobenhausen, DE;
Frank Jermann, München, DE;
Manfred Kobusch, Munich, DE;
Michael Ostertag, Munich, DE;
Wolfgang Rossner, Holzkirchen, DE;
Franz Zwaschka, Ismaning, DE;
OSRAM Gesellschaft mit beschränkter Haftung, Munich, DE;
OSRAM Opto Semiconductors GmbH, Regensburg, DE;
Abstract
An illumination device with at least one LED as the light source, the LED emitting primary radiation in the range from 370 to 430 nm of the optical spectral region (peak wavelength), this radiation being partially or completely converted into radiation of a longer wavelength by three phosphors which are exposed to the primary radiation from the LED and which emit in the blue, green and red spectral regions, so that white light is formed. The conversion is achieved at least with the aid of a phosphor which emits blue light with a wavelength maximum at 440 to 485 nm, and with the aid of a phosphor which emits green light with a wavelength maximum at 505 to 550 nm, and with the aid of a phosphor which emits red light with a wavelength maximum at 560 to 670 nm.