Results 11 to 20 of about 328,280 (263)
Applied Sciences, 2019 Conventionally, a bright, very wide-angle optical system is designed as a floating type optical system that moves two or more lens groups composed of multiple lens in order to focus accurately.
Hojong Choi, Jaemyung Ryu
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Power Profile-Based Antenna Selection for Millimeter Wave MIMO With an All-Planar Lens Antenna Array
IEEE Access, 2021 Lens antenna arrays can significantly reduce the number of radio frequency (RF) chains and provide a cost-effective beamforming approach to millimeter-wave massive multiple-input multiple-output (MIMO) systems.
Qianyun Zhang +4 more
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African Vision and Eye Health, 2014 Discomfort when wearing contact lenses, especially rigid contact lenses, is a common complaint amongst neophyte as well as experienced contact lens wearers. Wearing a piggy-back system of contact lenses has been shown to improve comfort and wearing time,
W. D.H. Gillan
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Energies, 2022 This paper is an experimental characterization of a light-receiving module containing a fly-eye lens system with high tolerance to beam irradiation conditions. The fly-eye lens system, which is tolerant to fluctuations in beam shape, beam size, number of
Yuha Tai, Tomoyuki Miyamoto
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A Novel Fisheye-Lens-Based Photoacoustic System
Sensors, 2016 This paper presents a novel fisheye-lens-based photoacoustic (PA) system. In conventional PA systems, mechanical motors are utilized to obtain the target information due to the small fields of view of such systems.
Hojong Choi, Jaemyung Ryu, Jungsuk Kim
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Odessa Astronomical Publications, 2017 In this paper, we study the correlation between the number of solutions of a system of lens equations and the number of source images that a gravitational lens has. We defined the concept of an image in a gravitational lens.
A. T. Kotvytskiy +2 more
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Design and Simulation of Aerosol Inlet System for Particulate Matter with a Wide Size Range
Atmosphere, 2023 A novel aerodynamic lens-based inlet system was developed for a wide particle size range, and it could extend the size range of transmitted particulate matter (PM) to 50 nm–10 μm.
Xubing Du +9 more
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Dysfunctional lens syndrome: a prospective review
Revista Brasileira de Oftalmologia, 2021 The term dysfunctional lens syndrome has gained acceptance in the field and encompasses natural changes due to aging of crystalline lens. The evolution of diagnostic devices has been a key factor in better staging, understanding and characterizing of ...
Jorge Selem Haddad +4 more
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Developed an In-Line System of Measuring MTF for Automating the Assembly Process of Lens-Module in a Smartphone Camera [PDF]
한국정밀공학회지, 2021 In this paper, we would like to introduce an in-line MTF (Modulation Transfer Function) measuring system which is compatible with the automated assembly process line of lens-modules in smartphone cameras.
Sangseon Lee, Hojae Lee
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Wide-angle spectral imaging using a Fabry-Pérot interferometer [PDF]
Journal of the European Optical Society-Rapid Publications, 2015 We show that wide-angle spectral imaging can be achieved with compact and cost-effective devices using Fabry-Pérot interferometers. Designs with a full field of view of 90°, in which the Fabry-Pérot interferometer is mounted either in front of an imaging
Strauch M. +3 more
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