zemax can help to design many kinds of optical systems. Here are the basic steps: /Nns3oE
#6mr'e1
1. make spec for your system &"DD&87N%
2. make initial design Mo]aB:a
3. choose glass materials @./@"mR<
4. analysize the abration and image...
pER[^LH_)
5. modify and optimze them (this is the core of the design). c3(0BSv
\-D[C+1(
To do these, you need to study basic knowledge of geometric optics.