I have query regarding Optic Studio feature : analyse> surface > sag table . Also attached a image for your kind consideration. If required I can share file as well.
Q1 : How is the slope being calculated here ?
Q2 : What is maximum slope deviation meaning ? and how it is being calculated ?
Looking forward for your reply .
Best answer by Alberto.Donazzan
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It will helpful if you can understand us in example.
Hello
Q1: as from the commonly agreed definition of “slope”, this is the first derivative of Sag with respect to Y-coord. Clearly, OpticStudio calculates this derivative numerically, but I don’t know the specific computational approach or the differentiation step used. Likely, the latter should be independent of the “Step Size” you select in the Settings.
Q2: this is the max value from the Slope Delta data column. Slope Delta itself is obtained as abs(Slope-BFS Slope)
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