Equations to estimate the wavefront surface in the Hartmann test for lenses: comparison between two wavefront estimations when the Hartmann screen is close to the test lens

When testing lenses with Hartmann methods, a wave aberration function W is typically estimated. This W represents the deviations of the wavefront surface w with respect to an ideal wavefront E. In this test, the distance r from the observation screen to the second lens surface is considered, and, as...

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Bibliographic Details
Published in:Optical engineering 2016-03, Vol.55 (3), p.034103-034103
Main Authors: Téllez-Quiñones, Alejandro, Malacara-Doblado, Daniel, García-Márquez, Jorge, Gutiérrez-Hernández, D. Asael
Format: Article
Language:English
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Summary:When testing lenses with Hartmann methods, a wave aberration function W is typically estimated. This W represents the deviations of the wavefront surface w with respect to an ideal wavefront E. In this test, the distance r from the observation screen to the second lens surface is considered, and, as in the case of W, by considering paraxial approximations, two estimations of w can be directly constructed from Hartmann test data without calculating W. We have compared these two estimations by taking into account small r values; a possible and suitable condition to measure some relatively high-power lenses. The importance of estimating w can be useful for improving some optical measurements as power map reconstructions.
ISSN:0091-3286
1560-2303
DOI:10.1117/1.OE.55.3.034103