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:
Dec. 28, 2010
Filed:
Jan. 15, 2007
Hans-helmut Bechtel, Roetgen, DE;
Wolfgang Busselt, Roetgen, DE;
Peter Schmidt, Aachen, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A light-emitting device comprising a solid-state light source (), at least one conversion element () and a light-scattering element (), wherein the solid-state light source () is provided to emit a first part () of a primary radiation for entry into the light-scattering element () and a second part () of a primary radiation for entry into the conversion element () for at least partial conversion into at least one secondary radiation (), the light-scattering element () is provided to generate a mixed radiation () having a Lambertian light distribution pattern from the first part () of the primary radiation, the secondary radiation () and a portion of the second part () of the primary radiation that has not been converted in the conversion element (), and the first part () of the primary radiation leaves the light-emitting device without having passed the conversion element ().