Diffractive-refractive hybrid doublet to achromatize the human eye

Abstract

In this work, we show the design of a diffractive-refractive hybrid doublet to achromatize the human eye. It takes advantage of the achromatizing properties of diffractive elements combined with conventional optics. The performance of the doublet has been compared with conventional systems, which have more elements. The results show that it is a useful alternative to those systems.

Image Formation in the Living Human Eye

“…For larger displacements, the achromatizing lens actually worsens image quality. A practical alternative is the use of chromatic diffractive correctors (Díaz et al 2004), which can be implemented in, for example, intraocular lenses. To better understand the impact of chromatic aberrations in vision we used an adaptive optics instrument to evaluate the effect of correcting both LCA and spherical aberration (SA) .…”

New intraocular lens for achromatizing the human eye

“…13 Moreover, it has been demonstrated that the improvement in visual performance after chromatic aberration correction is lost when alignment errors occur when placing the correction system in front of the eye (due to the emergence of the chromatic parallax 14 ). Recently, Diaz et al 15 showed that the design of a diffractive-refractive hybrid doublet reduced the optical elements of the previous doublets or triplets. The possibility of correcting chromatic aberration using contact lenses becomes more difficult because of movement of the contact lens on the eye, which would negate any benefit.…”