Results 41 to 50 of about 9,035 (308)
Journal of refractive surgery, 2017 PURPOSE Standard evaluation of aberrations from wavefront slope measurements in patients implanted with a rotationally asymmetric multifocal intraocular lens (IOL), the Lentis Mplus (Oculentis GmbH, Berlin, Germany), results in large magnitude primary ...
Vyas Akondi +6 more
semanticscholar +1 more source
Higher order aberrations of the eye: Part two
African Vision and Eye Health, 2016 This article is the second in a series of two articles, which provides a discussion of the factors that may possibly contribute to variable results when wavefront aberrations of the human eye are measured.
Marsha Oberholzer +2 more
doaj +1 more source
Adaptive Detection of Wave Aberrations Based on the Multichannel Filter
Photonics, 2022 An adaptive method for determining the type and magnitude of aberration in a wide range is proposed on the basis of an optical processing of the analyzed wavefront using a multichannel filter matched to the adjustable Zernike phase functions.
Pavel A. Khorin +2 more
doaj +1 more source
Optics Express, 2016 A method for beam quality management is presented in a master oscillator power amplifier (MOPA) using Nd:YVO4 as the gain medium by extra-cavity periodic reproduction of wavefront aberrations.
B. Liu +6 more
semanticscholar +1 more source
Light: Advanced Manufacturing, 2023 The widely used Shack –Hartmann wavefront sensor (SHWFS) is a wavefront measurement system. Its measurement accuracy is limited by the reference wavefront used for calibration and also by various residual errors of the sensor itself. In this study, based
Yi He +5 more
semanticscholar +1 more source
Lensless Scheme for Measuring Laser Aberrations Based on Computer-Generated Holograms
Sensors, 2020 All of the existing holographic wavefront sensors are either bulky or have low accuracy of measuring wavefront aberrations. In this paper, we present an improvement of the holographic method of measuring wavefront aberrations using computer-generated ...
George Krasin +4 more
doaj +1 more source
A direct comparison between a MEMS deformable mirror and a liquid crystal spatial light modulator in signal-based wavefront sensing [PDF]
Journal of the European Optical Society-Rapid Publications, 2013 Aberrations degrade the performance of optical systems in terms of resolution and signal-to-noise ratio. This work explores the feasibility of a signal-based wavefront sensor, which employs a search algorithm to estimate Zernike coefficients of given ...
Jewel A. R., Akondi V., Vohnsen B.
doaj +1 more source
Calibration and performance evaluation of a monomorph deformable mirror
Results in Optics, 2022 To achieve diffraction-limited performance with a 50 cm solar telescope at the Udaipur solar observatory the development of a high-order adaptive optics (AO) system is currently in progress. The system includes a monomorph deformable mirror (MDM) with 85
A. Raja Bayanna +3 more
doaj +1 more source
Spatio‐Temporal Characterization of Pump‐Induced Wavefront Aberrations in Yb3 + ‐Doped Materials
, 2018 A comprehensive spatio‐temporal characterization is presented describing the pump‐induced wavefront aberrations in Yb3 + ‐doped YAG, CaF2, and fluorophosphate glass.
I. Tamer +5 more
semanticscholar +1 more source
Optical quality of hyperopic and myopic phakic intraocular lenses
Indian Journal of Ophthalmology, 2014 Aims: To assess and compare the optical quality of the myopic and hyperopic implantable collamer lens (ICL) from its wavefront aberrations for different powers and pupil diameters. Settings and Design: Prospective study.
Cari Pérez-Vives +4 more
doaj +1 more source