# General formula for bi-aspheric singlet lens design free of spherical aberration.

```@article{GonzlezAcua2018GeneralFF,
title={General formula for bi-aspheric singlet lens design free of spherical aberration.},
author={Rafael G. Gonz{\'a}lez-Acu{\~n}a and H{\'e}ctor A. Chaparro-Romo},
journal={Applied optics},
year={2018},
volume={57 31},
pages={
9341-9345
}
}```
• Published 25 October 2018
• Physics
• Applied optics
In this paper, we present a rigorous analytical solution for the bi-aspheric singlet lens design problem. The input of the general formula presented here is the first surface of the singlet lens; this surface must be continuous and such that the rays inside the lens do not cross each other. The output is the correcting second surface of the singlet; the second surface is such that the singlet is free of spherical aberration.
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