Patent ID: 8729582

Claim:
A light emitting device comprising a body having a surface, a region of a semiconductor material and a light emitting source on one side of the surface, and an emitted light directing arrangement adjacent an opposite side of the surface for directing emitted light along a passage for light and away from the surface, the light directing arrangement comprising a structure of alternate layers of a light reflecting material and layers of an insulating material forming a light reflecting sidewall having a circular transverse cross-section and the passage for light having a main axis and wherein the sidewall comprises exposed edges of the layers of a light reflecting material adjacent to the passage and which are linked by regions of a light reflecting material cladding adjacent edges of the layers of an insulating material and wherein a distance from the main axis to the exposed edge of any one of the layers of a light reflecting material is not less than a distance from the main axis to the region cladding the adjacent edge of the layer of an insulating material immediately adjacent said one layer of a light reflecting material in a direction towards the surface.