LIGHT-CONCENTRATING FILM, METHOD FOR PRODUCING SAME, FOCUSING ELEMENT, SOLAR CELL, AND FOCUSING METHOD

摘要

Disclosed is a light concentration method that can concentrate incident light from a wide range of angles in a highly efficient manner. Further disclosed is a light-concentrating film, a light-concentrating element provided with said light-concentrating film, and a solar cell. The light-concentrating film comprises an organic material and is characterized by having a multi-valued gradation pattern.