Brise soleil

Brise soleil, sometimes brise-soleil (French pronunciation: ​[bʁiːz sɔlɛj], plural, "brise-soleil" (invariable), from French, "sun breaker"), is an architectural feature of a building that reduces heat gain within that building by deflecting sunlight. Brise-soleils can comprise a variety of permanent sun-shading structures, ranging from the simple patterned concrete walls popularized by Le Corbusier in the Palace of Assembly to the elaborate wing-like mechanism devised by Santiago Calatrava for the Milwaukee Art Museum or the mechanical, pattern-creating devices of the Institut du Monde Arabe by Jean Nouvel.