Under non-sequential mode, you may use zqg4@"
p
Kw}-<y
Toroidal Lens which support aspheric surface jE.U~D)2YF
'G3B02*
or you may use Biconic Lens if you make use of conic constant alone to create aspheric surface. z#*w Na&@[
[k(oQykq
Hope this would help, bu tbear in mind that diffraction effect is not modelable in non-sequential mode.