The paper aims to create a unit using Fresnel lenses. This module consist of an arrangement of planar-convex Fresnel lenses. made of methyl polymethacrylate. mounted in a hexagonal raster and bent to form a dome for collecting and amplifying solar radiation at several focal points and with the possibility of adjusting the focal distance. https://www.allpeoplesay.com/product-category/crystals/
Crystals
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