LIGHT GUIDE AND LIGHTING ASSEMBLY WITH ARRAY OF MICRO-OPTICAL ELEMENT GROUPINGS

A light guide includes a first major surface, an opposed second major surface, and a light input edge extending therebetween. Micro-optical elements at at least one of the first major surface and the second major surface are arranged in an array of micro-optical element groupings. Each grouping includes a first micro-optical element and a second micro-optical element adjacent the first micro-optical element and arranged along a light propagation path extending from the light input edge. In some embodiments, the second micro-optical element is configured to redirect at least a portion of light propagating along the light propagation path and incident thereon toward the first micro-optical element such that the redirected light is incident the first micro-optical element and extracted from the light guide. In other embodiments, the second micro-optical element is configured to redirect at least a portion of the propagating light incident thereon away from the first micro-optical element.