zemax can help to design many kinds of optical systems. Here are the basic steps: V,zFHXO
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1. make spec for your system "WY5Pzsi:
2. make initial design ~W"@[*6w
3. choose glass materials Z!q$d/1
4. analysize the abration and image... j<WsFVS
5. modify and optimze them (this is the core of the design). u=PLjrB~}
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To do these, you need to study basic knowledge of geometric optics.