Patent ID: 8690395
Filing Date: 2014-04-08
Classification: F21K,F21V,F21Y,H01L,Y10T

Abstract:
1. A light emitting device comprising: a primary light source for emitting a primary light having a first wavelength, the primary light source being disposed in a first plane; a light converting medium arranged for converting at least a part of the primary light to secondary light having a second wavelength, an optical structure, disposed between the first plane and the second plane, wherein the optical structure is arranged for receiving a part of the secondary light from the light converting medium and for redirecting the part of the secondary light in a direction towards the first plane and away from the primary light source, wherein the optical structure comprises a plurality of surfaces, the surfaces being oriented such that the part of the secondary light is redirected in the direction towards the first plane defining an area at least partially surrounding the primary light source.