US Patent 9850705 Energy efficient shading systems for windows

A shading assembly configured to have a first selectable state that is transmissive to more than 40% of solar light and reflects more than 35% of solar heat, a second selectable state that blocks more than 75% of the solar light and transmits more than 50% of the solar heat, and a third selectable state that transmits more than 50% of the solar light and more than 50% of the solar heat.