zemax can help to design many kinds of optical systems. Here are the basic steps: /r~2KZE
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1. make spec for your system 3pWav
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2. make initial design )?[7}(4jI
3. choose glass materials s|<n7 =J
4. analysize the abration and image... {k.:DH)
5. modify and optimze them (this is the core of the design). _1gNU]"
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To do these, you need to study basic knowledge of geometric optics.