zemax can help to design many kinds of optical systems. Here are the basic steps: ^7''x,I
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1. make spec for your system 3AL.UBj&}
2. make initial design .^NV e40O
3. choose glass materials jF5JpyOc
4. analysize the abration and image... U^YPL,m1
5. modify and optimze them (this is the core of the design). 'H9~rq7
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To do these, you need to study basic knowledge of geometric optics.