Caustics in a meridional plane produced by plano-convex conic lenses.

@article{AvendaoAlejo2011CausticsIA,
  title={Caustics in a meridional plane produced by plano-convex conic lenses.},
  author={Maximino Avenda{\~n}o-Alejo and Dulce Gonz{\'a}lez-Utrera and Luis E Casta{\~n}eda},
  journal={Journal of the Optical Society of America. A, Optics, image science, and vision},
  year={2011},
  volume={28 12},
  pages={2619-28}
}
We study the formation of caustic surfaces formed in both convex-plano and plano-convex conic lenses by considering a plane wave incident on the lens along the optical axis. By using the caustic formulas and a paraxial approximation, we derive analytic expressions to evaluate the spherical aberration to the third order, and a formula to reduce this aberration is provided. Furthermore, we apply the formulas to evaluate the circle of least confusion for a positive lens as a function of all… CONTINUE READING