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:
Apr. 02, 2013
Filed:
Dec. 14, 2007
Joseph Ludovicus Antonius Maria Sormani, Eindhoven, NL;
Egbert Lenderink, Eindhoven, NL;
Matthias Daniel Epmeier, Aachen, DE;
Aldegonda Lucia Weijers, Eindhoven, NL;
Joseph Ludovicus Antonius Maria Sormani, Eindhoven, NL;
Egbert Lenderink, Eindhoven, NL;
Matthias Daniel Epmeier, Aachen, DE;
Aldegonda Lucia Weijers, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
Proposed is a light-emitting apparatus, comprising a semiconductor light emitting deviceand a transparent ceramic bodycomprising a wavelength converting material positioned in light receiving relationship to the semiconductor device. The light-emitting apparatus is characterized in that the side surfacesof the ceramic bodyare at an oblique anglerelative its bottom surface. This is especially advantageous to unlock the wave-guide modes inside the body. Consequently the total flux emitted from the light-emitting apparatuscan be enhanced considerably. Alternatively, the brightness of the top surfaceof the ceramic bodycan be enhanced considerably.