Patent ID: 9188296
Filing Date: 2015-11-17
Classification: F21S,F21V

Abstract:
1. A device comprising: a transparent element having a substantially planar top surface in an x-y-plane defined by an x-axis and a y-axis and a substantially planar bottom surface, wherein the top and bottom surfaces are arranged in an angle α with respect to each other around the x-axis, and a light reflector having a reflective surface, wherein the reflective surface comprises a material which is reflective for visible light, and wherein the reflective surface is arranged substantially parallel and adjacent to the bottom surface of the transparent element, wherein the reflective surface is spaced apart from the transparent element by a transparent medium having a lower refractive index than the transparent element, so that direct sunlight incident on the substantially planar top surface of the transparent element is refracted by each material transition interface and reflected by the light reflector.