| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce an impact on a power generation amount even if there are some gaps of the optical system by using a simple and inexpensive secondary optical system, with regard to the basic structure of concentrator photovoltaic power generation. <P>SOLUTION: The concentrator photovoltaic power generation unit, i.e., a component of a concentrator photovoltaic power generation module, includes a concentration part 13 having a lens element (e.g., a Fresnel lens 13f) for condensing sunlight, a power generation element 21 for generating power by receiving sunlight thus condensed, and a light guide part 22 provided on the optical path from the concentration part 13 to the power generation element 21. The light guide part 22 is a frame which is shaped so that the inner wall 22a serves as a reflection surface and the inlet 22in of light is spreading wider than the outlet 22out of light. Sunlight condensed by the concentration part 13 is reflected on the inner wall 22a to be guided to the outlet 22out and collected on the power generation element 21 facing the outlet 22out. <P>COPYRIGHT: (C)2013,JPO&INPIT |
