今天看镜头缩放看到一句话,应该能用在这里
Scaling of data is performed based upon the units of measure for the data.
If the scale factor is X, then data
measured in lens units of length will be scaled by the factor X. Data
measured in units of lens units squared (such
as millimeters squared) will be scaled by X squared. Some polynomial
coefficients, such as those on the Even
Aspheric surface, have units that change from term to term, and ZEMAX
accounts for this when scaling the data.
Other parameters, such as the conic constant, are dimensionless, and are
therefore not scaled.