zemax can help to design many kinds of optical systems. Here are the basic steps: ]_pL79y
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1. make spec for your system R|M:6]}
2. make initial design 4dok/ +Ec
3. choose glass materials .XE]vo
4. analysize the abration and image... (,TO|
5. modify and optimze them (this is the core of the design). PA=BNKlH
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To do these, you need to study basic knowledge of geometric optics.