The Aspheric Sag Page computes the sag of an even aspheric surface given the radius or curvature, the conic constant, the aspheric polynomial coefficients and the radial coordinate of a point on the surface.
Where r is the radial coordinate of the point where the surface sag is calculated.
The results on this page are automatically computed as soon as you select "Done" on the pop-up keyboard.
A Note On Units
All units should be in metric. Curvature is in units of inverse mm and the A2 to A12 coefficients are in inverse mm of the appropriate power.
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