Results 21 to 30 of about 334,949 (278)

Design strategy and management of aberration correction process for lens with high complexity index [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2021
Subject of Research. The strategy of designing optical imaging systems is defined, which consists in combining various design methods and is based on the theory of structural and parametric synthesis, ensuring the presence of the necessary correction ...
Irina L. Livshits   +3 more
doaj   +1 more source

Modeling low order aberrations in laser guide star adaptive optics systems [PDF]

open access: yes, 2007
When using a laser guide star (LGS) adaptive optics (AO) system, quasi-static aberrations are observed between the measured wavefronts from the LGS wavefront sensor (WFS) and the natural guide star (NGS) WFS.
Bouchez, Antonin H.   +2 more
core   +1 more source

Full‐Color Metaoptical Imaging in Visible Light

open access: yesAdvanced Photonics Research, 2022
Metaoptics is a fast‐growing field with the potential to dramatically miniaturize image sensors. Unlike many other scientific endeavors, metaoptics are poised to make a technological and commercial impact within a few decades of inception. In particular,
Luocheng Huang   +3 more
doaj   +1 more source

The Effect of a Parabolic Apodizer on Improving the Imaging of Optical Systems with Coma and Astigmatism Aberrations

open access: yesPhotonics, 2023
We present the results of improving resolution in the imaging of two closely spaced point sources with an optical system under the influence of apodization and different types of aberrations. In particular, we consider the effect of coma and astigmatism,
Andra Naresh Kumar Reddy   +3 more
doaj   +1 more source

Genomic alterations in primary gastric adenocarcinomas correlate with clinicopathological characteristics and survival. [PDF]

open access: yes, 2004
Background & aimsPathogenesis of gastric cancer is driven by an accumulation of genetic changes that to a large extent occur at the chromosomal level. In order to investigate the patterns of chromosomal aberrations in gastric carcinomas, we performed
Albertson, Donna   +7 more
core   +3 more sources

Inner Leaf Gel of Aloe striata Induces Adhesion-Reducing Morphological Hyphal Aberrations

open access: yesJournal of Fungi, 2018
Fungi, particularly molds that are cosmopolitan in soils, are frequent etiologic agents of opportunistic mycoses. Members of the Fusarium solani and Fusarium oxysporum species complexes are the most commonly implicated etiologic agents of opportunistic ...
Gloria Wada, Michael Vincent, Marcia Lee
doaj   +1 more source

Image Ellipticity from Atmospheric Aberrations [PDF]

open access: yes, 2007
We investigate the ellipticity of the point-spread function (PSF) produced by imaging an unresolved source with a telescope, subject to the effects of atmospheric turbulence.
Asztalos, S. J.   +4 more
core   +3 more sources

Wave front aberrations and patient satisfaction of aspheric intraocular lenses

open access: yesJournal of the Egyptian Ophthalmological Society, 2018
Aim The aim was to study postoperative wave front higher order aberrations of eyes implanted with aspheric intraocular lens (IOL) in comparison with those with standard spherical IOL and to assess the subjective satisfaction in relation to both IOL ...
Ismail A.N Omar
doaj   +1 more source

Spatial Planning as a Public Management Tool in Poland: Premises and Reality

open access: yesAnnales Universitatis Mariae Curie-Skłodowska Sectio H, Oeconomia, 2023
The aim of this paper is to assess the functioning of spatial planning in Poland in the context of public management objectives. Drawing on the concepts of New Public Management, we use the category of stakeholders and public value generated for ...
Bogusław Gulski   +1 more
doaj   +1 more source

Ray and Wave Aberrations Revisited: A Huygens-Like Construction yields Exact Relations [PDF]

open access: yes, 2015
The optical aberrations of a system can be described in terms of the wave aberrations, defined as the departure from the ideal spherical wavefront; or the ray aberrations, which are in turn the deviations from the paraxial ray intersection measured in ...
Ihrke, Ivo   +2 more
core   +5 more sources

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