Hi!

I am trying to set a system made of two Fresnel lenses (that I don’t know anything about), capable of accepting +/- 45 deg of source incident angle. I am working in non sequential and I am getting familiar with the optimization wizard. For this specific application I have run an optimization (orthogonal descent algorithm), in order to minimze the RMS on the detector and to have a minimum power of 0.08 W (see Local Optimization Viewer pic attached). The variables are:

• Thickness of both lenses
• Radius of curvature of both lenses
• Coeff r2 of both lenses
• Frequency of both lenses
• Conic constant of both lenses
• z1, z2 (distance between lenses, distance between second lens and detector)

This optimization yielded a 25 h process, leading to the results I attach here in the format of pics as well (Merit function editor, Detector viewer and System view).

How should I interpret these results? Should I think it is not possible then? Can I trust this system? 

Thank you for your precious help,

best,

Giulia.