期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：170
期号：4
页码：042119
DOI：10.1088/1755-1315/170/4/042119
语种：English
出版社：IOP Publishing
摘要：An efficient and compact concentrator Fresnel concentrator is discussed and designed,The central region is a conventional Fresnel lens designed according to Snell's law of refraction,The edge region is designed to be TIR (internal total reflection) prism.According to the Fresnel formula,the best segmentation position and the optimum focal length of two kinds of lens are calculated,and use SolidWorks to build 3D model,The ray tracing simulation of the designed lens is carried out by using TracePro software.The results show that the efficiency is 89.6% and the F/# is 0.5 at high concentration. The efficiency of the traditional Fresnel concentrator is only 66% when the F/# is the same. The design goal of compact structure and high light performance is achieved.
