zemax can help to design many kinds of optical systems. Here are the basic steps: KzX)6|g{"
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1. make spec for your system O3?^P"C
2. make initial design j >`FZKxp
3. choose glass materials 8QMMKOui\
4. analysize the abration and image... nTw:BU4jd
5. modify and optimze them (this is the core of the design). #V)l>
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To do these, you need to study basic knowledge of geometric optics.