zemax can help to design many kinds of optical systems. Here are the basic steps: 'WF Ey>1#
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1. make spec for your system (g>8!Gl
2. make initial design {`X O3
3. choose glass materials ^p@ #
4. analysize the abration and image... f9ziSD#
5. modify and optimze them (this is the core of the design). eyUhMjd
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To do these, you need to study basic knowledge of geometric optics.