13 September 2023 6 8K Report

Hello friends,

I'm working on the partial coherence calculation of a micro lens array(MLA) based system, and first I need to know the NA of the rectangular beam. Conventionally, the beam is a circular one, but when the Kohler integrator is applied the beam is a rectangular one. In this case, how can we calcuate the NA of the Fourier lens?

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