| 摘要 |
<p>PURPOSE: A concentrating unit of a solar cell assembly is obtain concentration efficiency applied to a high expensive Fresnel lens with high efficiency. CONSTITUTION: A concentration unit(20) concentrates sunlight inputted through a lens and transmits the concentrated light to a solar cell of a cell receiver. A concentration unit includes a first concentration unit(22) and a second concentration unit(24). The first concentration unit is fixed on the cell receiver. The second concentration unit is extended to the lens direction of the first concentration unit. The second concentration unit has a larger widening angle than the first concentration unit based on an optical axis of the lens.</p> |
