zemax can help to design many kinds of optical systems. Here are the basic steps: bve_*7CEM
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1. make spec for your system j7(sYo@x7
2. make initial design
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3. choose glass materials r]e1a\)r
4. analysize the abration and image... o1Bn^w
5. modify and optimze them (this is the core of the design). xJG&vOf;?
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To do these, you need to study basic knowledge of geometric optics.