基于卡塞格林结构的高倍太阳能聚光镜

针对传统聚光系统聚光倍数低、造价昂贵且结构复杂的弊端,对高倍太阳能聚光镜进行了设计研究。利用卡塞格林结构具有高倍聚光及光束耦合的优点进行编程建模,设计了新型高倍太阳能聚光镜,给出了设计方法及运用光学软件ZEMAX以不同入射角度入射时的模拟结果。模拟结果表明,设计的太阳能聚光镜消除了球差的影响,在太阳光入射角为0.5°时,实现有效聚光比为544,光学效率为84.835%。该聚光镜较传统聚光镜有更高的光学效率,并且结构简单、价格低廉,有望商业化。

High power solar condenser based on Cassegrain structure

In consideration of the defects of traditional condenser systems in low condensing rates,high costs and complex structures,high-power solar condensers were studied and designed.Based on the advantages of Cassegrain structure in high light gathering and beam coupling,a new type of high-power solar condenser was designed,and the optical design software ZEMAX was used to simulate the structure in different incident angles.The simulation results show that the Cassegrain structure eliminates the impact of spherical aberration.When arrival angle of sunshine is 0.5°,a concentration ratio of 544 and an optical efficiency of 84.835% can be obtained.Compared with traditional condenser systems,this device has a simple structure,high optical efficiency and a low cost.It has opened up a new path for the commercialization of solar condensers.