zemax can help to design many kinds of optical systems. Here are the basic steps: zP5H TEz
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1. make spec for your system 77)C`]0(
2. make initial design jildiT[s
3. choose glass materials sUg7
4. analysize the abration and image... a+]@$8+
5. modify and optimze them (this is the core of the design). 9{+B lNZ
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To do these, you need to study basic knowledge of geometric optics.