Output irradiance of tapered lightpipes.

  title={Output irradiance of tapered lightpipes.},
  author={Ivan Moreno},
  journal={Journal of the Optical Society of America. A, Optics, image science, and vision},
  volume={27 9},
  • Ivan Moreno
  • Published 12 August 2010
  • Physics
  • Journal of the Optical Society of America. A, Optics, image science, and vision
A light cone efficiently transports, distributes, and concentrates the incoming radiation. I derive a formula for the spatial irradiance (or illuminance) distribution at the exit aperture of a tapered light pipe. The theory is demonstrated by Monte Carlo ray-tracing for lightpipes with light-emitting diodes at the input face. The analysis is based on the addition of the radiation patterns of the multiple virtual sources that, as in a three-dimensional kaleidoscope, are seen through a tapered… 

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