rzyp:就是我问一下,细光束0.7071带的子午场曲,弧矢场曲,子午彗差,弧矢彗差在哪里找啊
(2012-08-09 10:32)
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yN WbI0a You could check "Scan Type" setting under Field Curvature/Distortion curve to either scan across x or y direction. In addition, you could use Grid Distortion, which give you an overview of distortion.
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_| Op$J"R For coma, it normally displays as a parabolic curve in Ray Fan plot but it can be a bit complicated to analyse if you also have other dominating aberrations. Another way to look into coma is by looking at Zernike Standard Coefficeint, the term 5 and 6 correspond to coma in y and x orientation respectively. ZERN operands should help to extract these values.
_!CvtUU0Vv ,39$iHk However, these are only for the third order. Once you go higher order aberrations, the conversion between Seidel and Zernike becomes not so stright forward.