US Patent 10309614 Light directing element

Light directing elements, methods, and systems are disclosed. An example light directing element may comprise an elongated body having a first end, a second end and an exterior surface, the elongated body being transparent or translucent to permit transmission of light axially and radially therethrough, a light emitter disposed at the first end of the elongated body, and a diffuser including at least one reflective element disposed within the elongated body, wherein the diffuser is configured to redirect axially emitted light from the light emitter radially towards the exterior surface and wherein the diffuser expands in cross-section towards the second end.