zemax can help to design many kinds of optical systems. Here are the basic steps: oJ*1>7[ J
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1. make spec for your system YpdNX.P,
2. make initial design m:`@?n~..
3. choose glass materials &h$|j
4. analysize the abration and image... MM{_Ur7Q
5. modify and optimze them (this is the core of the design). % U`xu.
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To do these, you need to study basic knowledge of geometric optics.