International Journal of Photoenergy / 2014 / Article / Tab 1

Research Article

Achromatic Fresnel Lens with Improved Efficiency for PV Systems

Table 1

Achromatic lenses and distinguishing parameters.

Design parametersAchromatic lens 1Achromatic lens 2

Steep size (mm)0.50.5
Steep angle (°)Minimum difference (PC-PMMA)Average difference (PC-PMMA)
Reference pointEdge of prism stepMiddle of prism step