zemax can help to design many kinds of optical systems. Here are the basic steps: .%BT,$1K
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1. make spec for your system g]@(E
2. make initial design #qU-j/Qf
3. choose glass materials
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4. analysize the abration and image... -Lu)'+
5. modify and optimze them (this is the core of the design). SEwku}
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To do these, you need to study basic knowledge of geometric optics.