Achromatic Doublet Lens Design & Abbe Number Calculator
Calculate individual component focal lengths ($f_1$ and $f_2$) for crown and flint optical glasses to eliminate primary chromatic aberration at specified wavelengths.
Target Lens & Optical Glass Pair
Positive for convergent / objective lens, negative for divergent
N-BK7: V_d = 64.17
N-SF11: V_d = 25.76
Individual Component Powers & Curvatures
Crown Focal Length (f₁)
-
-
Flint Focal Length (f₂)
-
-
Total Power Φ
--
Abbe Difference ΔV
--
Contact Interface
Cemented
Achromatic Condition Status
Φ₁/V₁ + Φ₂/V₂ = 0 (Color blur corrected at F & C Fraunhofer lines)
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