Light directing element

A light directing element comprising:

• a transparent or translucent body having a first end, a second end and an exterior surface;
• and
• a diffuser disposed within the transparent or translucent body and expanding in cross-section towards the second end, wherein:
• the diffuser comprises at least one reflective element configured to redirect light axially transmitted from the first end radially towards the exterior surface;
• at least a portion of the light comprises disinfecting light with a wavelength in a range of 380 to 420 nanometers;
• and
• the diffuser is configured to redirect the at least the portion of the light toward the exterior surface with a substantially uniform irradiance at least 0.02 milliWatts per square centimeter (mW/cm2) across an area of the exterior surface.

A method comprising:

• creating a conically shaped diffuser comprising at least one alignment pin;
• inserting the at least one alignment pin into a first plate;
• inserting a tube into the first plate and surrounding the conically shaped diffuser;
• and
• filling the tube with material.

A system comprising:

• a first light emitting element comprising a first diffuser, wherein the first diffuser expands in cross-section towards a first end of the first light emitting element and wherein the first diffuser comprises at least one reflective element configured to redirect light axially transmitted from a second end of the first light emitting element radially towards an exterior surface of the first light emitting element;
• a second light emitting element comprising a second diffuser, wherein the second diffuser expands in cross-section towards a first end of the second light emitting element and wherein the second diffuser comprises at least one reflective element configured to redirect light axially transmitted from a second end of the second light emitting element radially towards an exterior surface of the second light emitting element;
• and
• an end cap disposed between the first light emitting element and the second light emitting element.