Optical device for repositioning and redistributing an LED's light

An optical device for distributing a radiant output of a light emitter, comprising:

• an expander section;
• and
• a cylindrical ejector section having an ejector section diameter;
• wherein said expander section is constructed of a substantially transparent material and operable for receiving said radiant output and spatially widening said radiant output while narrowing said radiant output least down to an angular range corresponding to the ejector section diameter substantially via total internal reflection;
• and
• wherein said cylindrical ejector section is coupled to said expander section and constructed of substantially transparent material and operable for receiving and ejecting said angularly narrowed radiant output via a graded sub-wavelength surface roughness of the cylindrical ejector section.

An optical device for spatially displacing and redistributing a radiant output of a light emitter adapted for the substantially hemispherical emission of light, the optical device comprising:

• a lower transfer section having a transfer section top end and a transfer section bottom end;
• and
• an upper ejector section disposed upon the transfer section top end,
• wherein the lower transfer section further comprises a lower minor section with an expanding profile and an upper dielectric section with a contracting profile,
• wherein at least a portion of the upper dielectric section and at least a portion of the upper ejector section are constructed of a transparent dielectric,
• wherein the light emitter is disposed at the transfer section bottom end,
• wherein the lower transfer section is adapted to reconstitute the light emitted from the light emitter into the upper ejector section, and
• wherein the upper ejector section is adapted to redistribute the reconstituted light into a substantially solid angle of external directions.