New types of refractive-reflective aplanats for maximal flux concentration and collimation. Academic Article uri icon


  • We identify and evaluate new categories of dual-contour refractive-reflective aplanatic lenses, some of which can satisfy total internal reflection at the secondary surface. Raytrace simulations for a representative design in both solar concentrator and collimator (illumination) mode reveal high efficiency while approaching the thermodynamic limit for radiative transfer.

publication date

  • January 1, 2015