González-Acuña Rafael G, Avendaño-Alejo Maximino, Gutiérrez-Vega Julio C
J Opt Soc Am A Opt Image Sci Vis. 2019 May 1;36(5):925-929. doi: 10.1364/JOSAA.36.000925.
We introduce a general closed-form analytic formula to design special lenses that generate spherical aberration-free extended images specified previously by the user. The formula considers arbitrary and non-conventional patterns. The formalism is tested with well-established ray tracing techniques.