Results 21 to 30 of about 38,857 (309)

Depth-Resolved Wavefront Aberrations using a Coherence-Gated Shack-Hartmann Wavefront Sensor [PDF]

open access: yes, 2010
In the present paper we investigate the possibility of narrowing the depth range of a physical Shack - Hartmann (SH) wavefront sensor (WFS) by using coherence gating.
Tuohy, Simon, Podoleanu, Adrian G.H.
core   +1 more source

Turbulent parameters at different heights in the atmosphere. Shack–Hartmann wavefront sensor data

open access: yesSolar-Terrestrial Physics, 2022
The paper presents the results of studies of wavefront distortions at different heights in the atmosphere. We have used measurement wavefront data to determine optical turbulence parameters along the line of sight of the Large Solar Vacuum Telescope ...
Shikhovtsev A. Y.   +5 more
doaj   +1 more source

Wavefront aberrations in children with myopia and hyperopia before and after cycloplegia

open access: yesРоссийский офтальмологический журнал, 2018
Purpose: a comparative study of the effect of cycloplegia on wavefront aberration in children with myopia and hyperopia. Material and methods. The study involved 20 patients (39 eyes) with myopic refraction (averagely -5.2 ± 1,5 D) and 26 patients (52 ...
E. P. Tarutta   +2 more
doaj   +1 more source

Chamanzar/WAVEFRONT: WAVEFRONT

open access: yes, 2023
<p>The repository includes code and software related to the paper entitled Chamanzar, Elmer, Shutter, Hartings and Grover (2023).</p> <p>Presence of spreading depolarizations is known to indicate worsening brain injuries.
Chamanzar
core   +1 more source

Tissue-Saving Zernike Terms Selection in Customized Treatments for Refractive Surgery

open access: yesJournal of Optometry, 2009
Purpose: To study the possibility of performing customized refractive surgery minimising the amount of ablated tissue without compromising visual quality.
Samuel Arba-Mosquera   +2 more
doaj   +1 more source

Reconstructing the Spatial Parameters of a Laser Beam Using the Transport-of-Intensity Equation

open access: yesSensors, 2022
A simple method for reconstructing the spatial parameters of a laser beam, based on the transport-of-intensity equation, is presented. Registration of cross-section intensity distributions in several planes was carried out using a single CMOS camera. The
Michael Kovalev   +5 more
doaj   +1 more source

Three-dimensional spatiotemporal focusing of holographic patterns

open access: yesNature Communications, 2016
Three-dimensional computer-generated holography cannot be implemented with temporal focusing. Here, Hernandez et al. use two spatial light modulators to control transverse- and axial-target light distribution, generating spatiotemporally focused patterns
Oscar Hernandez   +5 more
doaj   +1 more source

Centre Symmetry Sets of Families of Plane Curves

open access: yesDemonstratio Mathematica, 2015
We study centre symmetry sets and equidistants for a I-parameter family of plane curves where, for a special member of the family, there exist two inflexions with parallel tangents.
Giblin Peter, Reeve Graham
doaj   +1 more source

Computational Method for Wavefront Sensing Based on Transport-of-Intensity Equation

open access: yesPhotonics, 2021
Recently the transport-of-intensity equation as a phase imaging method turned out as an effective microscopy method that does not require the use of high-resolution optical systems and a priori information about the object.
Iliya Gritsenko   +4 more
doaj   +1 more source

A review of higher order aberrations of the human eye

open access: yesAfrican Vision and Eye Health, 2019
Background: This literature review is part of a research study for aberration-correcting soft contact lenses, where wavefront aberrometry was utilised.
Ayesha Suliman, Alan Rubin
doaj   +1 more source

Home - About - Disclaimer - Privacy