Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Composite modified Luneburg model of human eye lens

Not Accessible

Your library or personal account may give you access

Abstract

A new lens model based on the gradient-index Luneburg lens and composed of two oblate half spheroids of different curvatures is presented. The spherically symmetric Luneburg lens is modified to create continuous isoindicial contours and to incorporate curvatures that are similar to those found in a human lens. The imaging capabilities of the model and the changes in the gradient index profile are tested for five object distances, for a fixed geometry and for a fixed image distance. The central refractive index decreases with decreasing object distance. This indicates that in order to focus at the same image distance as is required in the eye, a decrease in refractive power is needed for rays from closer objects that meet the lens surface at steeper angles compared to rays from more distant objects. This ensures a highly focused image with no spherical aberration.

© 2015 Optical Society of America

Full Article  |  PDF Article
More Like This
Three-dimensional ray tracing in spherical and elliptical generalized Luneburg lenses for application in the human eye lens

J. E. Gómez-Correa, V. Coello, A. Garza-Rivera, N. P. Puente, and S. Chávez-Cerda
Appl. Opt. 55(8) 2002-2010 (2016)

Bifunctional Luneburg–fish-eye lens based on the manipulation of spoof surface plasmons

Jin Zhao, Yi-Dong Wang, Li-Zheng Yin, Feng-Yuan Han, Tie-Jun Huang, and Pu-Kun Liu
Opt. Lett. 46(6) 1389-1392 (2021)

Modeling the power of the aging human eye

George Smith, David A. Atchison, and Barbara K. Pierscionek
J. Opt. Soc. Am. A 9(12) 2111-2117 (1992)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (8)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved