Patent 7828468 was granted and assigned to Acuity Brands on November, 2010 by the United States Patent and Trademark Office.
A louver assembly is disclosed for use in an overhead lighting system. The louver assembly comprises a series of thin, lightweight stringers and blade ribs arranged perpendicular to one another such that the respective side surfaces of the respective stringers are positioned at an acute angle with respect to a ceiling plane and the reflective faces of the blade ribs are positioned substantially transverse with respect to the ceiling plane.