Patent ID: 7888589

Claim:
A photovoltaic device for converting collected solar radiation comprising: a sealed housing having a transparent pupil receiving a collimated beam of the collected solar radiation; a plurality of photovoltaic cell arrays, each photovoltaic cell array being sensitive to a respective spectral region of the collected solar radiation different from the other photovoltaic cell arrays and being placed on respective inner surfaces of said sealed housing; a plurality of dichroic filters being arranged in cascade along an optical axis of said transparent pupil and splitting the collimated beam into a corresponding plurality of divided beams of different spectrums; and a plurality of mirrors corresponding to said plurality of divided beams, each mirror having a plurality of reflecting surfaces, receiving a respective divided beam, and subdividing the received divided beam into a plurality of reflected beams from said plurality of reflecting surfaces and being directed for illuminating an active area of a photovoltaic cell of the respective array.