Correction lenses for a glass cylinder

Question

Dear community,as part of my bachelor thesis, I’m trying to find a solution to compensate the refraction of a glass cylinder. I’m afraid, I don’t have sufficient time to gain enough skills on the program although I already did many of the tutorials.During my literature research, I found out, that a pair of mirror-symmetric meniscus lenses should solve my problem. I tried to optimize my model of the optical system (see file), but several tries did not work. :-(I really appreciate your help!Thank you,Elias

Sven.Stöttinger · Accepted Answer

Hi Elias,looking at your Zemax-File the first thing that comes to my mind is to reduce your number of variables. If there are too many variables(like in your case 20 variables), you give your system too much “freedom” without enough boundaries to find a proper solution - unless you have infinite time.Ifmirror-symmetric lenses might be an approach to solve your problem, you can use the Solve-Type “Pickup” between the two lenses in order to mirror the radii, diameter, thickness and distance to the glass cylinder, which can reduceyour number of variables for the optimization process.Maybe this helps you to find your solution,Sven

Sandrine Auriol · Answer

Hi EliasI also had a look at your system and I was wondering…What are you trying to optimize? No merit function is defined. If you are working on imaging, I would go back to sequential since it makes things easier for the software. If you can, post a sketch of what you’d like to do and we will be able to guide you a bit further.I don’t know if you have seen but we have some good tutorials available for a range of subjects:https://www.zemax.com/blogs/free-tutorials

Correction lenses for a glass cylinder

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