HoloSun^TM by Sun Phocus Technologies is a thin holographic coating that can be applied on glass surfaces and incorporated into photovoltaic panels.  This patented technology works as a concentrator of sunlight onto any type of solar cells.  The semi-transparency derived from the holographic film integrated into the PV panels make this technology particularly fit for BIPV applications.  The aesthetical and physical properties of the holographic film in fact makes the PV panels more attractive for many architectural applications.