Mass Manufactured Secondary Optics for CPV

The Fraunhofer Institutes for Solar Energy Systems ISE and for Mechanics of Materials IWM in cooperation with industrial partners have explored routes for highly cost effective mass manufacturing of dome lens shaped glass secondary optical elements (SOEs) for concentrating photovoltaics (CPV). This included optical design studies, design optimizations and outdoor measurements on prototypes by Fraunhofer ISE. Fraunhofer IWM has explored a short cycle molding process suitable for low-cost high volume production. SOEs of spherical shape can be a possible option for a cost-effective production.