| 摘要 |
<p>PROBLEM TO BE SOLVED: To raise the condensation rate and uniformity of sunlight irradiated on a solar battery cell without using a homogenizer.SOLUTION: A light-condensation surface of a light-condensation Fresnel lens 2 is divided into m×n of multiple light-condensation regions (one of m, n is an integer equal to or greater than 1, and the other is an integer of equal to or greater than 2) so that the amounts of incident light of sunlight 11 are equal to each other, and a solar battery cell 3 is divided into m×n of square light-receiving regions equal in area corresponding one for one to each light-condensation region of the light-condensation Fresnel lens 2, the inclination of each light-condensation region relative to each light-receiving region being individually set so that condensed light 12 collects in the light-receiving region corresponded to the light-condensation region.</p> |
