| The technique of translationing the light to the electricity will improve well in the future.If concentrate the light according to the ensure number .So the irradiance on cell increases very much.The facula on the cell has very hign energy. The output power of the cell increase very much.The photoelectricity efficiency of the cpv system reach the higher numerical value.The analyze of many kinds of the optics system basing on the nonimaging optics is proved in this paper.These optics system adapt to many complex environment that different temperature and place.Choice the right concentrating optics system, that offer the facula that the irradiace is very uniformity, and hign efficiency.According to the contrast, Fresnel lens become the most suitably optics system because of the weight light,simple volume,cheep,and be arrayed together easy. We will discuss the application of the Fresnel lens in the solar energy.
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