Patent ID: 8242351

Claim:
A solar cell concentrator structure, the solar cell concentrator structure comprising: a first concentrator element configured in a first pyramidal shape having a first curved wall region, the first concentrator element including a first aperture region and a first exit region, the first exit region including a first back surface region; a second concentrator element configured in a second pyramidal shape having a second curved wall region and the second concentrator element being integrally formed with the first concentrator element, the second concentrator element including a second aperture region and a second exit region, the second exit region including a second back surface region; a first coupling region between the first exit region and a first surface region of a first photovoltaic device; a second coupling region between the second exit region and a second surface region of a second photovoltaic device; a thickness of glass material comprising the first concentrator element integrally formed with the second concentrator element, the thickness of glass being 5 mm to 7 mm; a separation region provided between the first concentrator element and the second concentrator element, the separation region being characterized by a width separating the first exit region from the second exit region; a second radius of curvature characterizing a region between the first concentrator element and the second concentrator element, the second radius of curvature being less than about 0.10 mm and greater than 0.001 mm; a geometric concentration range from about 1.8 to 4.5 characterizing the first concentrator element and the second concentrator element; a triangular shaped region including an apex defined by the second radius of curvature and a base defined by the separation region; and a refractive index of about 1 characterizing the triangular region; wherein the second radius of curvature reduces a scattering effect of a portion of an incident electromagnetic radiation.