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I would like to perform image simulation by first generating a USAF 1951 3-bar target on a curved object surface concave toward the entrance pupil, rather than on a flat surface object. Has anyone tried that before? How to do it?
Thanks, Mike
Best answer by Jeff.Wilde
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This post may be of some help:
When using a paraxial lens for imaging, the curved object surface produces field-dependent defocus as well as distortion.
Not sure if you want to apply correcting pre-distortion…
Regards,
Jeff
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Thanks Jeff, but how did you apply the USAF target pattern on a curved object? That’s what I’m asking.
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I just put a radius of curvature on the object surface. Now the field points have a z-component given by the sag of the object surface.
Regards,
Jeff
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