平面微光学太阳能集热器中的正交和二次聚光

Orthogonal and secondary concentration in planar micro-optic solar collectors.

作者信息

Karp Jason H, Tremblay Eric J, Hallas Justin M, Ford Joseph E

机构信息

Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0407, USA.

出版信息

Opt Express. 2011 Jul 4;19 Suppl 4:A673-85. doi: 10.1364/OE.19.00A673.

DOI:10.1364/OE.19.00A673

PMID:21747534

Abstract

Planar micro-optic concentrators are passive optical structures which combine a lens array with faceted microstructures to couple sunlight into a planar slab waveguide. Guided rays propagate within the slab to edge-mounted photovoltaic cells. This paper provides analysis and preliminary experiments describing modifications and additions to the geometry which increase concentration ratios along both the vertical and orthogonal waveguide axes. We present simulated results for a 900x concentrator with 85% optical efficiency, measured results for small-scale experimental systems and briefly discuss implementations using low-cost fabrication on continuous planar waveguides.

摘要

平面微光学聚光器是一种无源光学结构，它将透镜阵列与多面微结构相结合，以将太阳光耦合到平面平板波导中。被引导的光线在平板内传播到边缘安装的光伏电池。本文提供了分析和初步实验，描述了对几何结构的修改和添加，这些修改和添加提高了沿垂直和正交波导轴的聚光比。我们展示了具有85%光学效率的900倍聚光器的模拟结果、小规模实验系统的测量结果，并简要讨论了在连续平面波导上使用低成本制造的实施方案。