zemax can help to design many kinds of optical systems. Here are the basic steps: F+!9T
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1. make spec for your system LfN,aW
2. make initial design TE6]4E*
3. choose glass materials +F*h\4ry#
4. analysize the abration and image... u.Tknw-X
5. modify and optimze them (this is the core of the design). zUq(bD
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To do these, you need to study basic knowledge of geometric optics.