Results 31 to 40 of about 619,306 (307)
Türk Oftalmoloji Dergisi, 2013 Purpose: To evaluate the effects of different lens designs on visual quality among soft spherical contact lens users. Material and Method: Forty eyes of twenty patients from our contact lens unit were included in this study.
Mustafa Demir +2 more
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Using two-dimensional graphene lenses to increase the effectiveness of solar panels
Revue des Énergies Renouvelables, 2023 We aim to enhance the efficiency of solar panels by covering them with graphene lenses that collect and concentrate light rays onto the panels. The simulation was performed using the Monte Carlo method and provided precise results regarding the ...
Abid Boudiar +2 more
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Optical Lenses for Atomic Beams [PDF]
, 2009 Superpositions of paraxial laser beam modes to generate atom-optical lenses based on the optical dipole force are investigated theoretically. Thin, wide, parabolic, cylindrical and circular atom lenses with numerical apertures much greater than those ...
A. E. Siegman +4 more
core +2 more sources
Delhi Journal of Ophthalmology, 2018 Lenses and mirrors have always been an integral part of an ophthalmologist’s armamentarium. Since time immemorial curious minds have been trying to peep inside the eye using various techniques, be it indentation of the limbus and using direct ...
Aditi Singh, Meena Menon
doaj +1 more source
Dr TIM: Ray-tracer TIM, with additional specialist scientific capabilities
, 2013 We describe several extensions to TIM, a raytracing program for ray-optics research. These include relativistic raytracing; simulation of the external appearance of Eaton lenses, Luneburg lenses and generalized focusing gradient-index (GGRIN) lenses ...
Courtial, Johannes +2 more
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Multiple imaging by gravitational waves [PDF]
, 1997 Gravitational waves act like lenses for the light propagating through them. This phenomenon is described using the vector formalism employed for ordinary gravitational lenses, which was proved to be applicable also to a non-stationary spacetime, with the
Braginsky V. B. +9 more
core +3 more sources
Research on the Influence of Cleaning Products on the Quality of Optical Lens Surfaces
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials ScienceThe paper presents research on the evaluation of the influence of maintenance products, such as cleaning solutions, on the quality of lenses. The research analysed the effects of these products on scratch resistance and image clarity. The eyeglass lenses
Beatrice Daniela TUDOR +1 more
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Photoaligning and Photopatterning: New LC Technology
Crystals, 2020 We demonstrate a physical model of photoalignment and photopatterning based on rotational diffusion in solid azo-dye nanolayers. We also highlight the new applications of photoalignment and photopatterning in display and photonics such as: (i) liquid ...
Vladimir Chigrinov +2 more
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A millimeter-wave antireflection coating for cryogenic silicon lenses [PDF]
, 2007 We have developed and tested an antireflection (AR) coating method for silicon lenses at cryogenic temperatures and millimeter wavelengths. Our particular application is a measurement of the cosmic microwave background.
Fowler, J. W. +10 more
core +2 more sources
Deciphering Brain Function by Miniaturized Fluorescence Microscopy in Freely Behaving Animals
Frontiers in Neuroscience, 2020 Animal behavior is regulated by environmental stimuli and is shaped by the activity of neural networks, underscoring the importance of assessing the morpho-functional properties of different populations of cells in freely behaving animals.
Sarah Malvaut +7 more
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