Results 11 to 20 of about 243,905 (335)
International Journal of Ophthalmology, 2013 AIM: To record aberrations with a corneal topographic device on the anterior surface of the cornea at different time-points prior to wearing and following discontinued use of rigid gas permeable (RGP) contact lenses.
Shi-Qi Dong +5 more
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Spatial rainbows and catastrophes in transmission of protons through electrostatic hexapole lens [PDF]
Nuclear Technology and Radiation Protection, 2018 This work reports on the spatial rainbows occurring in transmission of 10 keV protons through hexapole lens. Positive potentials of the lens electrodes are set to be 0.9, 2, and 5 kV.
Telečki Igor N. +4 more
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Spatial rainbows and catastrophes in transmission of protons through electrostatic octopole lens [PDF]
Nuclear Technology and Radiation Protection, 2018 This paper considers transmission of initial parallel proton beam with kinetic energy of 10 kеV through electrostatic octopole lens. The spatial rainbows and corresponding proton distributions are calculated by using infinite length ...
Telečki Igor N. +2 more
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Calibration and removal of lateral chromatic aberration in images [PDF]
, 2007 This paper addresses the problem of compensating for lateral chromatic aberration in digital images through colour plane realignment. Two main contributions are made: the derivation of a model for lateral chromatic aberration in images, and the ...
Mallon, John, Whelan, Paul F.
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Micromachines, 2016 Field curvature and other aberrations are encountered inevitably when designing a compact fluorescence imaging system with a simple lens. Although multiple lens elements can be used to correct most such aberrations, doing so increases system cost and ...
Mohiuddin Khan Shourav +3 more
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Automatic Modal Wavefront Estimation and Correction for Optical Aberration
IEEE Photonics Journal, 2019 Modal estimation of aberration can quantify the amount of aberration, which plays an important role in optical system optimization, aberration correction, and so on. Here, we propose a simple but effective method to find the modal wavefront of aberration.
Xiaomin Lai +4 more
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Journal of Microelectronic Manufacturing, 2019 5 nm logic technology node is believed to be the first node that will adopt Extremely Ultra-Violet (EUV) lithography on a large scale. We have done a simulation study for typical 5 nm logic design rule patterns.
Yanli Li, Qiang Wu, Shoumian Chen
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Aberration Corrected Emittance Exchange [PDF]
, 2015 Full exploitation of emittance exchange (EEX) requires aberration-free performance of a complex imaging system including active radio-frequency (RF) elements which can add temporal distortions.
Graves, William S., Nanni, Emilio A.
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Aberrational vignetting and eikonal theory [PDF]
Journal of the European Optical Society-Rapid Publications, 2009 If an aperture stop is located inside of a real optical system, then a variation of an entrance pupil depends on the inclination of the incident beam of light rays.
Gitin Andrey
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Why the Bradley aberration cannot be used to measure absolute speeds. A comment [PDF]
, 2002 In a recent article in this journal [G. Sardin, Measure of the absolute speed through the Bradley aberration of light beams on a three-axis frame, Europhys. Lett. 53 (2001) 310], Sardin proposed to use the Bradley aberration of light for the construction
K Kassner, Sardin G.
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