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geometrical optics
chromatism


axial chromatism of a thick lens


Caution
Fill in all input cells.
Choose all parameters unit.
nl and nl can be either values or the reference of a glass from the catalog. If a value is directly entered, the wavelength will not be considered.
e is positive.
radii and x are algebric or infinite. Enter "infinite" for a plane surface or for an object at infinity.
Positive direction is according the horizontal arrow in the bottom right of the scheme.

InputValueunit
x
nl
ns
R1
R2
e
OutputValueUnit
xirto be calculated
xibto be calculated
dxito be calculated
axial chromatism of a thick lens
x : distance from the vertex of the first surface to the object point nl : refraction index for the large wavelength ns : refraction index for the small wavelength R1 : radius of curvature of the first surface R2 : radius of curvature of the second surface e : center thickness xir : distance from the vertex of the second surface to the image point for the large wavelength xib : distance from the vertex of the second surface to the image point for the small wavelength dxi : axial chromatism

Note
This calculation page can not detect all unrealistic inputs.



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