Patent ID: 8070341

Claim:
A light pipe having a substantially uniform brightness along a length thereof, the light pipe comprising: a first end for receiving a plurality of light rays and a second end spaced from the first end; a reflective portion for directing the received light rays in a pre-determined internal light pattern, wherein the reflective portion includes a plurality of reflective elements, and each of the reflective elements is a protrusion, a depth of at least one of the reflective elements adjacent the first end is less than a depth of at least another of the reflective elements adjacent the second end of the light pipe, a lateral width of at least one of the reflective elements adjacent the first end is less than a lateral width of at least another one of the reflective elements adjacent the second end of the light pipe, the lateral width measured in a direction orthogonal to a longitudinal axis of the light pipe, and the reflective elements at the first end of the light pipe are spaced wider than the reflective elements at the second end of the light pipe; an emitting portion for emitting the light rays in a pre-determined light distribution pattern; and an optics element for collimating at least a portion of the light rays and directing the light rays into the first end of the light pipe.