zemax can help to design many kinds of optical systems. Here are the basic steps: 4). i4]%LH
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1. make spec for your system n-)Xs;`2
2. make initial design ;)7 GdR^K
3. choose glass materials b~Q8&z2
4. analysize the abration and image... ~E^lKe
5. modify and optimze them (this is the core of the design). ;}W-9=81
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To do these, you need to study basic knowledge of geometric optics.