Sunshade for building exteriors

摘要

A sunshade (30) for shading window exteriors (25) includes at least one connecting bracket (38) for attachment to a window mullion (40), a blade support strut (36) attached to the connecting bracket (38) at a first joint, and a plurality of louvered blades (32) supported by the blade support strut (36) at a second joint. The pivot angle at the first joint may be varied to extend the louvered blades (32) a desired distance from the window mullion. The louvered blades (36) are positioned at a preselected fixed profile angle on the second joint in order to optimize shading at the latitude where the sunshade is installed. In a preferred embodiment, the louvered blades (36) have top walls supporting photovoltaic cells and the sunshade includes electric cables for connecting the photovoltaic cells to an electric circuit.