zemax can help to design many kinds of optical systems. Here are the basic steps: N)I
T?
J,M5<s[Xqt
1. make spec for your system kx#L<
2. make initial design aiX;D/t?
3. choose glass materials O?J:+L(
4. analysize the abration and image... ,ce^"yG
5. modify and optimze them (this is the core of the design). s/&]gj"
xwp?2,<
To do these, you need to study basic knowledge of geometric optics.