Patent ID: 9683718
Date: 2017-06-20
CPC Classifications: F21S,F21V,F21W,F21Y,G02B

Claim:
1. A light duct elbow, comprising: a first light conduit for transporting light along a first propagation direction; a second light conduit for transporting light along a second propagation direction different from the first propagation direction, the second light conduit intersecting the first light conduit to provide for contiguous transport of light from the first propagation direction to the second propagation direction; and a light diverter, between the first and second light conduits, comprising a reflector disposed at a non-zero angle to the first propagation direction, wherein a first light ray propagating within a collimation angle of the first propagation direction that intersects the reflector is diverted to a second light ray propagating within the collimation angle of the second propagation direction in the second light conduit, wherein the first light conduit has a first rectangular cross section and the second light conduit has a second rectangular cross section greater than the first rectangular cross section.