Results 21 to 30 of about 45,422,298 (247)
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
doaj +1 more source
An international survey of daily disposable contact lens prescribing
, 2013 Free to read\ud \ud Purpose\ud \ud The aim was to determine the extent of daily disposable contact lens prescribing worldwide and to characterise the associated demographics and fitting patterns.\ud \ud Methods\ud \ud Up to 1,000 survey forms were sent ...
Morgan, Philip B. +3 more
core +2 more sources
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
doaj +1 more source
Japanese Journal of Applied Physics, 2019 Optical wireless power transmission (OWPT) has numerous advantages. To obtain high efficiency of the OWPT, the fly-eye lens system is attractive for improving system efficiency due to the suppression of light leakage and non-uniform light irradiation ...
Y. Katsuta, T. Miyamoto
semanticscholar +1 more source
Polarization-independent Pancharatnam-Berry phase lens system.
Optics Express, 2018 The conventional liquid crystal-based Pancharatnam-Berry (PB) phase lens exhibits distinct polarization selectivity, manifesting opposite optical power to circularly polarized light with opposite handedness.
Tao Zhan +3 more
semanticscholar +1 more source
Chromatin remodeling enzyme Brg1 is required for mouse lens fiber cell terminal differentiation and its denucleation [PDF]
, 2010 Background: Brahma-related gene 1 (Brg1, also known as Smarca4 and Snf2 beta) encodes an adenosine-5'-triphosphate (ATP)-dependent catalytical subunit of the (switch/sucrose nonfermentable) (SWI/SNF) chromatin remodeling complexes.
He, Shuying +38 more
core +1 more source
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
doaj +1 more source
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
doaj +1 more source
Integrated contact lens sensor system based on multifunctional ultrathin MoS2 transistors
Matter, 2020 Smart contact lenses attract extensive interests due to their capability of directly monitoring physiological and ambient information. However, previous demonstrations usually lacked efficient sensor modalities, facile fabrication process, mechanical ...
Shiqi Guo +12 more
semanticscholar +1 more source
Nature Communications, 2022 Glaucoma is one of the irreversible ocular diseases that can cause vision loss in some serious cases. Although Triggerfish has been commercialized for monitoring intraocular pressure in glaucoma, there is no smart contact lens to monitor intraocular ...
Tae Yeon Kim +7 more
semanticscholar +1 more source