zemax can help to design many kinds of optical systems. Here are the basic steps: 4j|]=58
dRTtDH"%
1. make spec for your system I gcVl/d
2. make initial design yx"xbCc#
3. choose glass materials ks<gSCB
4. analysize the abration and image...
Z+`mla
5. modify and optimze them (this is the core of the design). YNA %/
hV#+joT8i
To do these, you need to study basic knowledge of geometric optics.