Irradiance tailoring with two-sided Fresnel-type freeform optics
Irradiance tailoring with two-sided Fresnel-type freeform optics
复制标题
使用两侧菲涅尔型自由曲面光学器件进行辐照度定制
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
P. Loosen
中科院分区：
文献类型：
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作者：
A. Bruneton;A. Bäuerle;M. Traub;R. Wester;P. Loosen
基于最优质量输运的Monge-Kantorovich理论，利用光源和目标辐照度之间的射线映射计算来设计双面自由曲面透镜，以满足汽车应用的约束：紧凑性和清晰的明暗分割。提出了一种产生菲涅耳型光学的通用分割技术，并以雾光透镜的设计为例说明了整个分割过程。最后对虚拟模型进行了蒙特卡罗仿真，并对聚碳酸酯样机进行了测量。
Based on the Monge-Kantorovich theory of optimal mass transport, the computation of a ray mapping between source and target irradiances is used to design two-sided freeform lenses fulfilling the constraints of an automotive application: compactness and sharp bright-dark cutoff. A generic segmentation technic resulting in Fresnel-type optics is presented and the whole procedure is illustrated with the design of a fog light lens. Finally Monte Carlo simulation of the virtual model and measurements of a polycarbonate prototype are presented.