Under non-sequential mode, you may use &$c5~9p\B
+~d1;0l|
Toroidal Lens which support aspheric surface |rFR8srPG
MCeu0e^)
or you may use Biconic Lens if you make use of conic constant alone to create aspheric surface. 6<Z*Tvk{C
i_u
{5 U;
Hope this would help, bu tbear in mind that diffraction effect is not modelable in non-sequential mode.