Anamorphic Concentration of Solar Radiation Beyond the One-Dimensional Thermodynamic Limit
Applied Optics, Vol. 39, Issue 22, pp. 3963-3967 (2000)
http://dx.doi.org/10.1364/AO.39.003963
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Abstract
We propose and demonstrate a new scheme for anamorphic concentration of a big (40 cm × 40 cm) diffuse light source to achieve an extremely high concentration in one lateral direction at the expense of that in the other direction, to preserve the total (two-dimensional) optical brightness. Such anamorphic concentration is achieved by a combination of two conventional two-dimensional concentrators and a properly designed retroreflector array. Our experiments in search of a diffuse white-light source with properties comparable with those of solar radiation have yielded 28-fold improvement of the one-dimensional concentration ratio compared with those of conventional concentrators and 14-fold improvement compared with the one-dimensional thermodynamic limit.
© 2000 Optical Society of America
[Optical Society of America ]
OCIS Codes
(080.2740) Geometric optics : Geometric optical design
(220.1770) Optical design and fabrication : Concentrators
(230.6080) Optical devices : Sources
(350.6050) Other areas of optics : Solar energy
Citation
Nir Davidson, Lev Khaykovich, and Erez Hasman, "Anamorphic Concentration of Solar Radiation Beyond the One-Dimensional Thermodynamic Limit," Appl. Opt. 39, 3963-3967 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-22-3963
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