Hi Zemax users,
I am trying to set up a lens system layout as shown below, but I am confused about the following points:
I have attached my data. I would really appreciate any help.
Could you please point out what I am doing wrong?
Best Regards
Yang
+2
I’m not totally sure, but I think both issues are related to the fact that you initiate the ray trace in a backward direction by having the first non-zero thickness negative in a “non-mirrored” space.
If you add a surface after the OBJECT and make its Material mirror, then the “positive” propagation direction becomes negative, and the arrows point in the right direction.
This is the same reason the Focal Length wasn’t behaving as expected as well.
In general, I think you want positive thicknesses until the first mirror, then switch to negative thicknesses until the next mirror, and then alternate the signs between mirrors.
I hope this helps.
Take care,
David
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