Free form XR photovoltaic Concentrator.

SPIE 7043-12.pdf (2008)

A novel photovoltaic concentrator is presented, that combines high concentration and high efficiency that operates close to the theoretical acceptance angle limit. The system is based on 1 cm2 multi-junction solar cells and a so called XR concentrator, shown here in a freeform off-axis configuration. The large acceptance angle relaxes the manufacturing tolerances of optical and mechanical components of the system.