【摘要】 本文从光学上讨论了平板透镜的聚光原理、设计公式、焦斑的计算及最佳设计方法等问题。对平行光和太阳光,分别进行了计算,焦斑尺寸的理论值非常接近实测值。更多还原

【Abstract】 This paper deals with the principle of fcusing, design formula, focal size calculation and its optimal design method for the flat plate Fresnel lens optically. The focal size has been calculated under both ideal parallel light and natural sunlight condition respectively. The result from natural sunlight approximately equal to the measured one.更多还原