Results 21 to 30 of about 100,646 (310)
Aberrational vignetting and eikonal theory [PDF]
If an aperture stop is located inside of a real optical system, then a variation of an entrance pupil depends on the inclination of the incident beam of light rays.
Gitin Andrey
doaj +1 more source
Chromatic aberration in metalenses
This paper provides a mathematical approach to study chromatic aberration in metalenses. It is shown that radiation of a given wavelength is refracted according to a generalized Snell's law which together with the notion of envelope yields the existence of phase discontinuities.
Gutiérrez, Cristian E., Sabra, Ahmad
openaire +3 more sources
Just-Noticeable Levels of Aberration Correction
Purpose: The objectives of this study were to determine whether the correction of higher-order aberrations (HOA) would be detectable by “normal” subjects and whether a full correction is necessary or better than a partial correction of the main HOA (i.e.,
Richard Legras, Hélène Rouger
doaj +1 more source
AIM: To evaluate the visual function after bilateral implantation of aspheric diffractive multifocal Tecnis ZMA00, aspheric monofocal ZA9003 versus spherical monofocal Akreos Adapt intraocular lenses (IOLs).METHODS: Tecnis ZMA00, Tecnis ZA9003 or Akreos ...
Ke Yao, Xia Li, Pan-Pan Ye
doaj +1 more source
SPECIAL ASPECTS OF INITIAL OPTICAL SCHEME SELECTION FOR DESIGN OF NON-IMAGING OPTICAL SYSTEMS [PDF]
Subject of Research. The research results, structural composition analysis and the parametric synthesis of the projected imaging and non-imaging optical systems were presented.
R. V. Anitropov +6 more
doaj +1 more source
STUDY OF BIREFRINGENCE INFLUENCE ON IMAGE QUALITY OF PHOTOLITHOGRAPHY SYSTEMS IN VIEW OF PARTIALLY-COHERENT LIGHT SOURCE [PDF]
Subject of study. A vector model for conversion of electromagnetic radiation in optical systems is considered, taking into account the influence of birefringence, as well as partially coherent illumination. Model.
E. A. Nikulina, V. A. Zverev
doaj +1 more source
Multiple inherent biases related to different citation practices (for e.g., self-citations, negative citations, wrong citations, multi-authorship-biased citations, honorary citations, circumstantial citations, discriminatory citations, selective and arbitrary citations, etc.) make citation-based bibliometrics strongly flawed and defective measures.
openaire +4 more sources
Objective Prediction of Human Visual Acuity Using Image Quality Metrics
This work addresses the objective prediction of human uncorrected decimal visual acuity, an unsolved challenge due to the contribution of both physical and neural factors. An alternative approach to assess the image quality of the human visual system can
Julián Espinosa Tomás +4 more
doaj +1 more source
We observe that focusing a femtosecond laser beam simultaneously chirped in time and space domains in glass can efficiently suppress the optical aberration caused by the refractive index mismatch at the interface of air and the glass sample.
Wei Chu (2008030) +7 more
core +1 more source
Base Curve of Progressive Addition Lenses Influences Clear Vision and Stereopsis Area
Go Mawatari,1 Saeko Uchida,2 Nobuhisa Nao-i1 1Department of Ophthalmology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan; 2Department of Orthoptics and Visual Sciences, Kyusyu University of Health and Welfare, Nobeoka, Miyazaki ...
Mawatari G, Uchida S, Nao-i N
doaj

