Achromatic Fresnel Lens with Improved Efficiency for PV Systems

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="787392.fig.007a" src="https://static-preview.hindawi.com/articles/ijp/volume-2014/787392/figures/787392.fig.007a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Efficiency versus wavelength. Incidence angle 0.4°</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="787392.fig.007b" src="https://static-preview.hindawi.com/articles/ijp/volume-2014/787392/figures/787392.fig.007b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Efficiency versus wavelength. Incidence angle 1°</td></tr></table></td></tr></table>

<table>Efficiency of achromatic and standard Fresnel lenses for 0.4° and 1° incidence.</table>

International Journal of Photoenergy

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Figure 7

Figure 7: Achromatic Fresnel Lens with Improved Efficiency for PV Systems 