Under non-sequential mode, you may use !Im{-t
J*r%b+
Toroidal Lens which support aspheric surface v^Pjvv =
uY$BZEuAZ
or you may use Biconic Lens if you make use of conic constant alone to create aspheric surface. JQ"w{O
=bl6:
Hope this would help, bu tbear in mind that diffraction effect is not modelable in non-sequential mode.