Patent ID: 8864360

Claim:
A lighting assembly, comprising: a light guide comprising: opposed major surfaces that are spaced apart in a thickness direction of the light guide; a geometrically-shaped light input edge that extends in the thickness direction between the opposed major surfaces, light that enters the light guide through a surface area of the light input edge propagates in the light guide by total internal reflection between the opposed major surfaces; an outer edge that extends in the thickness direction between the opposed major surfaces; and light-extracting elements at at least one of the major surfaces and that extract light from the light guide through at least one of the major surfaces by disruption of the total internal reflection of the light propagating in the light guide, the light-extracting elements including radially-extending regions of light-extracting elements of lower light-extracting capability interleaved with radially-extending regions of light-extracting elements of higher light-extracting capability, each radially-extending region extending radially outward from the light input edge towards the outer edge, each radially-extending region of higher light-extracting capability delineating adjacent segments of the light guide; and a light engine, comprising: an armature; and a light source assembly having a shape corresponding to the geometric shape of the light input edge, the light source assembly coupled to the armature and comprising light source segments, each light source segment inputting light into the light guide through the surface area of the light input edge with an angular spread sufficient to illuminate a corresponding one of the light guide segments and a portion of an adjacent light guide segment.