Patent attributes
A light control grid has a collapsible frame having an outer flexible band with straight sides supported by flexible strips, where each side is sewn to an adjacent side to form an enclosed polygonal perimeter, and the sewn junctions of the adjacent sides form pockets. Intersecting sets of flexible light control strips are sewn by the ends to the inner side of the flexible band to form light channels. A tape spring is inserted into a flexible sheath assembly for each side of the outer band, with each end inserted into the two pockets for that side, where slits near the end of each light control strip provide clearance for the sheath assembly to be inserted therethrough. Optionally a central flexible light control strip is replaced with a bracing cross member extending across the polygonal perimeter.
