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 parameters involved in the process of refraction through the conic lenses.
© 2011 Optical Society of America
Original Manuscript: June 28, 2011
Manuscript Accepted: August 1, 2011
Published: November 21, 2011
Maximino Avendaño-Alejo, Dulce González-Utrera, and Luis Castañeda, "Caustics in a meridional plane produced by plano-convex conic lenses," J. Opt. Soc. Am. A 28, 2619-2628 (2011)