Solar concentrator and production method thereof

A method for manufacturing a solar concentrator from transparent material having a light entry face, a light exit face and a light guide portion arranged between the light entry face and the light exit face and tapering in the direction of the light exit face, which light guide portion is restricted by a light guide portion surface between the light entry face and the light exit face, the method comprising the steps of:

• providing a first mold, adapted for molding the light entry face;
• providing at least a second mold, adapted for molding the light exit face;
• drawing the transparent material into the second mold by means of pressure below atmospheric pressure;
• press molding a transparent material between said first mold and said second mold for creating the solar concentrator, such that the light guide portion surface merges into the blank molded light exit face with a continuous first derivative, and
• further comprising the steps of:
• providing a photovoltaic element;
• and
• fixedly connecting said light exit face of said solar concentrator to said photovoltaic element.