hello,
I have a double pass system and I’d like to know how to do the tolerance analysis, in particular “axial” tolerances (irregularity, power, index,...).
I’ve tried to use TPAR operand on my “irregular” surfaces but how do I specify the values for Spherical, Astigmatism and Coma (Par 5, 6 and 7) in the TDE.
If I want TIRR = +/-0.5 fringes, what are the Zs, Za and Zc values ?
I’ve already used TU** operands for the off-axis tolerances of the elements (see https://support.zemax.com/hc/en-us/articles/1500005575762-How-to-tolerance-for-tilts-and-decenters-of-a-double-pass-system) but it’s not enough.
Thank you for your answers.
Best answer by Jeff.Wilde
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