Results 41 to 50 of about 771,659 (382)
Integration and Application of Microlens Arrays Within Heads-Up Displays
IEEE Photonics Journal, 2018 The proposed work targets a fundamental challenge in heads-up display technology-in that such displays must bring about tight imaging with a flat form factor to support integration within eyewear.
Weicheng Yan +6 more
doaj +1 more source
A Review of Smartphone Apps Used for Toric Intraocular Lens Calculation and Alignment
Vision, 2022 Smartphone apps are becoming increasingly popular in ophthalmology, one specific area of their application being toric intraocular lens (IOL) surgery for astigmatism correction.
Yarrow Scantling-Birch +3 more
doaj +1 more source
Finding strong lenses in CFHTLS using convolutional neural networks [PDF]
, 2017 We train and apply convolutional neural networks, a machine learning technique developed to learn from and classify image data, to Canada-France-Hawaii Telescope Legacy Survey (CFHTLS) imaging for the identification of potential strong lensing systems ...
Collett, Thomas +4 more
core +2 more sources
Weak Gravitational Lensing [PDF]
, 2005 This review forms the Weak Lensing part of the Saas-Fee Advanced Course on Gravitational Lensing. It describes the basicsm applications and results of weak lensing. Contents: (1) Introduction (2) The principles of weak gravitational lensing (3) Observational issues and challenges (4) Clusters of galaxies: Introduction, and strong lensing (5) Mass ...
arxiv +1 more source
Lensing as a Probe of Early Universe: from CMB to Galaxies [PDF]
JCAP 05(2016)044, 2015 The Cosmic Microwave Background (CMB) radiation lensing is a promising tool to study the physics of early universe. In this work we probe the imprints of deviations from isotropy and scale invariance of primordial curvature perturbation power spectrum on CMB lensing potential and convergence.
arxiv +1 more source
Characterization of Tunable Micro-Lenses with a Versatile Optical Measuring System
Sensors, 2018 In this work, we present the results of the opto⁻electro⁻mechanical characterization of tunable micro-lenses, Tlens®, performed with a single-spot optical measuring system.
Sabina Merlo +4 more
doaj +1 more source
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
doaj +1 more source
Photonics, 2021 This paper proposes the use of digital-grating moiré effect for measuring the focal lengths and radius of curvatures of biconvex and biconcave spherical simple lenses and spherical mirrors.
Chien-Yuan Han +5 more
doaj +1 more source
, 2017 We recently showed how structures of ideal (thin) lenses can act as (ray-optical) transformation-optics devices. This was done by breaking the structure down into all sets of ideal lenses in the structure that share a common edge, and showing that these ...
Belin, Jakub +3 more
core +1 more source
Gravitational lensing by spinning and radially moving lenses
Physics Letters A, 2002 8 pages; minor changes to match the published ...
Mauro Sereno, Mauro Sereno
openaire +3 more sources