FIELD: power engineering.
SUBSTANCE: holographic solar concentrator, including flat transparent plate with holographic element adjacent to its inlet face and formed by two adjacent holographic grids, diffraction angles of which have opposite signs, unit of selective linear photoconverters, additionally comprises serially optically joined double holographic grid, directly adjacent to outlet face of flat transparent plate, optically joined holographic grids of holographic element, and set of selective cylindrical Fresnel lenses, optically joined to unit of selective linear photoconverters. Length of each selective linear photoconverter is more than length of according selective cylindrical Fresnel lens by value determined by angle of its field of view. Width of double holographic grid is equal to doubled thickness of flat transparent plate with holographic element adjacent to its inlet face.
EFFECT: increased efficiency of concentration of incident solar radiation.
1 dwg
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Authors
Dates
2010-11-10—Published
2009-07-06—Filed