ABSTRACT
This chapter describes a nonimaging optics design method known in the fi eld as the simultaneous multiple surface (SMS) or the Miñano-Benitez design method. The abbreviation SMS comes from the fact that it enables the simultaneous design of multiple optical surfaces.1 The original idea came from Miñano. The design method itself was initially developed in 2-D by Miñano and later also by Benítez. The fi rst generalization to 3-D geometry came from Benítez. It was then much further developed by contributions of Miñano and Benítez. Other people have worked initially with Miñano and later with Miñano and Benítez on programming the method.
