Integrated-Resonant Units for Phase Compensation and Efficiency Enhancements in Achromatic Meta-lenses [PDF]
, 2023 Achromatic meta-lenses have shown great promise in ultracompact and full-color optical devices. Their performances, including size, bandwidth, and numerical aperture, are originally restricted by the phase compensation provided by functional meta-atoms ...
Rong Lin (329994) +7 more
core +1 more source
AUTOMATION OF LENSES CENTERING AT GLUING IN THE FRAME [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2015 This paper discusses the causes of lenses decentration at their gluing in the frame. We give the dependences of displacement value of the centers of curvature for the lens working surfaces from the base frame axis on the primary technological errors of ...
B. D. Bao, S. M. Latyev, R. Theska
doaj +1 more source
Insight into small eyes: a practical description from phenotypes presentations to the management [PDF]
International Journal of OphthalmologyThis narrative review aimed to have an algorithmic approach to microphthalmos by a systematic search. The definition can be related to a number of special phenotypes.
Sana Niazi +4 more
doaj +1 more source
Is it a coloboma or not? A new definition for isolated lens coloboma: focal zonular dysgenesis
The Pan-American Journal of Ophthalmology, 2023 Purpose: Ocular coloboma is defined as a congenital malformation caused by defective closure of the fetal fissure, resulting in a notch in any structure.
Nicole B Larivoir +5 more
doaj +1 more source
Subwavelength-thick lenses with high numerical apertures and large efficiency based on high-contrast transmitarrays [PDF]
Nature Communications, 2014 Flat optical devices thinner than a wavelength promise to replace conventional free-space components for wavefront and polarization control. Transmissive flat lenses are particularly interesting for applications in imaging and on-chip optoelectronic ...
A. Arbabi +4 more
semanticscholar +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
The Journal of Engineering, 2019 There exists few reports in the literature aimed at estimating depth from the spectrally-varying-amount-of-defocus contained in a single image generally captured by a commercial colour camera.
Wei Jiang, Dingrong Yi, Linghua Kong
doaj +1 more source
Applicative Bidirectional Programming with Lenses [PDF]
, 2015 A bidirectional transformation is a pair of mappings between source and view data objects, one in each direction. When the view is modified, the source is updated accordingly with respect to some laws.
Matsuda, Kazutaka +3 more
core +1 more source
Advancing vision care in children – bridging science, policy, and practice
BMC PediatricsPediatric vision health is a cornerstone of child development, learning, and social well-being. This editorial synthesizes current advances, challenges, and emerging frontiers in childhood vision care as reflected in this collection, emphasizing equity ...
Bharat Gurnani, Dipesh Patel
doaj +1 more source
Lens Distortion Measurement and Correction for Stereovision Multi-Camera System
Engineering ProceedingsIn modern autonomous systems, measurement repeatability and precision are crucial for robust decision-making algorithms. Stereovision, which is widely used in safety applications, provides information about an object’s shape, orientation, and 3D ...
Grzegorz Madejski +5 more
doaj +1 more source