zemax can help to design many kinds of optical systems. Here are the basic steps: /c3A>
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1. make spec for your system ?v8.3EE1\o
2. make initial design *
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3. choose glass materials apsR26\^
4. analysize the abration and image... h:{rjXK
5. modify and optimze them (this is the core of the design). pC<~\RR
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To do these, you need to study basic knowledge of geometric optics.