zemax can help to design many kinds of optical systems. Here are the basic steps: UCj:]!P
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1. make spec for your system OO</d:
2. make initial design {-Gh 62hDg
3. choose glass materials 6uTC2ka[&R
4. analysize the abration and image... ^"~r/@l
5. modify and optimze them (this is the core of the design). lI~8[[$xd
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To do these, you need to study basic knowledge of geometric optics.