Dear OpticStudio community,
I was wondering whether anybody could comment on the following context.
I’m using a microscope objective model with an NA of 0.95 in air, where the high NA side is located in the object space. The aperture type in the software is defined as object-side NA. Also, ray aiming (real) is on to equidistantly sample the aperture stop.
I’m interested in the diameter of the exit pupil (ExP), because there I want to extract the optical path difference relative to the chief ray with rays that equidistantly sample the exit pupil. For this purpose, I have to remap the rays in the aperture stop so that the condition to sample equidistantly the ExP is fulfilled.
Here I run over the fact that the 2x paraxial ray height at the ExP plane from the merit function editor does not match the operand EXPD.
So my question is how does the software calculate the EXPD operand and why I might get that difference
Thank you very much in advance.