將一個面的表面類型設(shè)為擴(kuò)展多項式（Extended Polynomial）后，extra data編輯框里的第二項norm radius是什么呢？應(yīng)該怎么設(shè)置呢？ ' uw&f;/E  
zemax manual里的說明是“Normalization radius. All ray-intercept points are divided by this number to determine the x and y coordinates for polynomial evaluation.”，但是沒看懂，請問大家怎么理解？ rL"k-5>fd  
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描述:zemax manual里的說明1

圖片:exp1.jpg

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描述:zemax manual里的說明2

圖片:exp2.jpg

  

generally this should be the semi-diameter of the surface. What "normalized" implies that the maximum is scaled to 1 and the rest of the cooridnates are calculated as a ratio.. This is similar to Normalized Coordinates used for pupil interception. See the Normalized Field/Pupil Coorindates in the user manual. 1]`HX=cl  
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Hope this helps ..

歸一化半徑，比如你要擬合鏡子半徑為70mm，擬合時通常在單位圓內(nèi)進(jìn)行，擬合前要把數(shù)據(jù)歸一化，即x,y除以70。擬合后，擬合系數(shù)輸入對應(yīng)系數(shù)項，而Normalization radius項呢就應(yīng)該設(shè)置為70.

不太懂呵呵

理解不能 求指點(diǎn)

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