Achromatic Doublet Designer

Design a cemented achromatic doublet from glass pair data. Computes individual element powers and focal lengths using the thin-lens achromatization condition.

System
Crown Glass (Positive Element)
nd = 1.5168  |  Vd = 64.17  |  P = 0.3076
Flint Glass (Negative Element)
nd = 1.6477  |  Vd = 33.82  |  P = 0.3176
Crown Element (Positive)
Power \u03c6\u2081
0.02114mm\u207b\u00b9
Focal length f\u2081
47.30mm
Flint Element (Negative)
Power \u03c6\u2082
-0.01114mm\u207b\u00b9
Focal length f\u2082
-89.74mm
Glass Pair Analysis
Abbe number difference \u0394V
30.35
Power ratio |\u03c6\u2081/\u03c6\u2082|
1.897
Secondary spectrum \u03b4f
-0.0329mm
Abridged Optics — Achromatic Doublet Designer v1.0\u03c6\u2081 = \u03c6\u00b7V\u2081/(V\u2081\u2212V\u2082). Thin-lens approximation. P values from SCHOTT catalog.

All information, equations, and calculations have been compiled and verified to the best of our ability. For mission-critical applications, we recommend independent verification of all values. If you find an error, please let us know.