Photovoltaics (PV) are a versatile and compact route to harness solar power. One critical challenge with current PV is preserving the optimal panel orientation angle with respect to the sun for efficient energy conversion. We experimentally demonstrate a bespoke multi-element lenslet array that allows for an increased power collection over a wide field of view by increasing the effective optical interaction length by up to 13 times specifically at large angles of incidence. This design can potentially be retrofitted onto already deployed amorphous silicon solar panels to yield an increased daily power generation by a factor of 1.36 for solar equivalent illumination. We 3D printed an optical proof of concept multi-element lenslet array to confirm an increase in power density for optical rays incident between 40 and 80 degrees. Our design indicates a novel optical approach that could potentially enable increased efficient solar collection in extreme operating conditions such as on the body of planes or the side of buildings.

光伏 (PV) 是一种利用太阳能的多功能且紧凑的途径。当前光伏发电面临的一项关键挑战是保持面板相对于太阳的最佳方向角度，以实现高效的能量转换。我们通过实验证明了一种定制的多元件小透镜阵列，通过将有效光学相互作用长度增加多达 13 倍，特别是在大入射角下，可以在宽视场内增加功率收集。这种设计有可能被改装到已经部署的非晶硅太阳能电池板上，以将太阳能等效照明的每日发电量增加 1.36 倍。我们 3D 打印了多元件小透镜阵列的光学概念验证，以确认 40 至 80 度之间入射的光线的功率密度有所增加。我们的设计表明了一种新颖的光学方法，可以在极端操作条件下（例如飞机机身或建筑物侧面）提高太阳能收集效率。