Sunbeams concentration lenses, process and apparatus for solar photovoltaic generator using concept of superposition

摘要

The present invention provides a concentration method of sunbeams for a photovoltaic power generation and lens and apparatus used in the method. A method of concentrating sunbeams according to the present invention is characterized in that as a method of concentrating sunbeams on a concentration surface of a solar cell that is installed on a photovoltaic power generator, it comprises steps of installing a concentration lens (20) on the upper side of a solar cell in parallel to the concentration surface, which includes a plurality of unit lens (21) having areas corresponding to the areas of the concentration surface, and irradiating and concentrating superposingly the sunbeams incident on the respective unit lens to the concentration surface. As a result, the present invention has advantageously a best performance in a solar cell.