01223nas a2200133   4500008004100000245009400041210006900135260001200204520073200216100001900948700002100967700002300988856007801011       2013                        eng d00aDaylight performance of a microstructured prismatic window film in deep open plan offices0 aDaylight performance of a microstructured prismatic window film   c09/20133 a<p>Daylight redirecting systems with vertical windows have the potential to offset lighting energy use in deep perimeter zones. A microstructured prismatic film was designed and fabricated by a manufacturer to redirect sunlight to the ceiling plane when the film was installed in the upper portion of a window. Energy simulations based on the raytracing program, Radiance, were performed to evaluate the annual lighting energy use and discomfort glare in a deep open plan office zone in several climates and for south and east-facing window orientations. These simulations showed that when the prismatic film was combined with a light diffusing film, the system was able to deliver significant energy savings without glare.</p>1 aMcNeil, Andrew1 aLee, Eleanor, S.1 aJonsson, Jacob, C.  uhttps://facades.lbl.gov/publications/daylight-performance-microstructured