A locking dynamic high NRC acoustic baffle and/or tile and a locking dynamic high NRC ceiling and/or wall system, that includes a single piece of material folded into locking dynamic high NRC acoustic baffles and/or tiles, using locking pieces and locking mechanisms, to quickly and easily install the locking dynamic high NRC acoustic baffle and/or tile onto construction ceiling hangers or onto walls to provide an aesthetically pleasing image, along with a reduction in unwanted noise or room acoustics.

An optically transmissive component comprises a light scattering extension portion which can be used within an edgelit light fixture to provides benefits in brightness uniformity and visual appearance by scattering light from near an input edge of a light guide or other edgelit optical element. The sequential propagation of light through both the extension portion and main portion of the optically transmissive component significantly reduces the higher brightness and uneven hotspotting type visual defects typically produced near the input edge of an edgelit optical system. With appearance constraints removed or reduced, edgelit light fixtures with higher output, higher efficacy, and/or simplified edgelit optical components are enabled. Embodiments include the use of the extension portion of the optically transmissive component extension to mechanically position and retain an edgelit optical element within a light fixture.

An acoustic tile made from a single piece of material folded along a plurality of folding scores to form a three-dimensional configuration. The three-dimensional configuration includes a plurality of folded extensions, a plurality of outer surfaces arranged to collectively form a faceted dome, a plurality of inner surfaces comprising a plurality of recesses. The acoustic tile also includes a plurality of locking pieces which engage the plurality of recesses to hold the single piece of material in the three-dimensional configuration.