DISC 操作数 用于校正f-theta畸变，那么在计算畸变时，实际像高是以主光线还是光线质心作为参考（尤其边缘视场主光线和光线质心往往相差比较大）？
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DISC 操作数 用于校正f-theta畸变，那么在计算畸变时，使用的像高 是主光线还是光线质心作为参考？
Best answer by Sean.Lin
Hi Mandy,
ZOS在計算Distortion時，都是以chief ray來計算像高，詳細的內容可以參考help file的說明。The Analyze Tab (sequential ui mode) > Image Quality Group > Aberrations (Image Quality Group) > Field Curvature and Distortion
Sean
+1Hi Mandy,
ZOS在計算Distortion時，都是以chief ray來計算像高，詳細的內容可以參考help file的說明。The Analyze Tab (sequential ui mode) > Image Quality Group > Aberrations (Image Quality Group) > Field Curvature and Distortion
Sean
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