We have an exciting announcement about badges coming in May 2025. Until then, we will temporarily stop issuing new badges for course completions and certifications. However, all completions will be recorded and fulfilled after May 2025.

Ansys Learning Forum Forums Discuss Simulation Optics Invalid SAG error Reply To: Invalid SAG error

Ethan Keeler
Ansys Employee

Happy to help and thank you for sharing the screenshot! I believe the issue is that you have set the Semi-Diameter to 0 (fixed) for Surface 1. OpticStudio likely doesn't know what to do with this definition during the conversion. Real optics will have some diameter defined on both sides of the lens, and often these diameters are the same. Could you try giving this field a reasonable value? In addition, since you are not actually defining a Biconic surface on Surface 1 (all values are infinity or 0), then I would suggest simplifying the definition by just using the Standard surface type.

Let me know if it still gives you trouble.

Ethan