Results 301 to 310 of about 2,756,584 (366)
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Correcting Optical Aberration via Depth-Aware Point Spread Functions
IEEE Transactions on Pattern Analysis and Machine IntelligenceOptical aberration is a ubiquitous degeneration in realistic lens-based imaging systems. Optical aberrations are caused by the differences in the optical path length when light travels through different regions of the camera lens with different incident ...
Jun Luo +4 more
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Multifunctional Spaceplates for Optical Aberration Correction
ACS Photonics: Spaceplates are nonlocal optical devices with the potential to reduce the form factor of optical systems, but current implementations are limited in performance and ability to correct for optical aberrations. We introduce a new class of multifunctional
Yixuan Shao +5 more
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Decomposition of the total wave aberration in generalized optical systems.
Journal of The Optical Society of America A-optics Image Science and Vision, 2017The increasing use of freeform optical surfaces raises the demand for optical design tools developed for generalized systems. In the design process, surface-by-surface aberration contributions are of special interest. The expansion of the wave aberration
M. Oleszko, R. Hambach, H. Gross
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Intraocular lens optics and aberrations
Current Opinion in Ophthalmology, 2016This review outlines concepts in intraocular lens (IOL) optics and aberrations important both for current IOLs and for new IOLs in development.Optical aberrations make a significant impact on the laboratory and clinical performance of IOLs, especially under mesopic and low-contrast conditions.
Daniel H, Chang, Karolinne M, Rocha
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Variable phase grating optical aberrator
Applied Optics, 1988We have developed and analyzed a heated laminar airflow device which introduces easily varied aberrations into optical beam trains. The aberrator produced nearly sinusoidal optical path differences of modulation depth 0 to 2lambda (peak to valley) at a 355-nm wavelength and a spatial frequency of ~2 cycles/cm.
L P, Schelonka +2 more
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Diffraction gratings and optical aberrations
Applied Optics, 1984The effects introduced by a plane diffraction grating on the diffracted wave front when a quasi-plane beam incides on it are calculated. Effects not previously discussed appear.
J M, Simon, M A, Gil
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Optical traps with geometric aberrations
Applied Optics, 2006We assess the influence of geometric aberrations on the in-plane performance of optical traps by studying the dynamics of trapped colloidal spheres in deliberately distorted holographic optical tweezers. The lateral stiffness of the traps turns out to be insensitive to moderate amounts of coma, astigmatism, and spherical aberration.
Yael, Roichman +3 more
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Zernike Polynomials and Optical Aberrations
Applied Optics, 1995The use of Zernike polynomials to calculate the standard deviation of a primary aberration across a circular, annular, or a Gaussian pupil is described. The standard deviation of secondary aberrations is also discussed briefly.
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Aberration Calculations of Homogeneous Optical Systems
1997The technique of calculating aberrations of homogeneous optical systems considered in Chap. 4 can be extended to the systems containing GRIN elements. However, to do this, one needs to obtain the formulae describing how aberration coefficients must be transformed when an aberrated wave propagates through an inhomogeneous medium. As with the homogeneous
Sergei A. Stepanov +2 more
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Journal of the Optical Society of America A, 2009
Building off an earlier work on multinodal third-order aberrations [J. Opt. Soc. Am. A22, 1389 (2005)], this is the first in a series of papers that derives and illustrates the characteristic multinodal geometry for each of the fifth-order aberrations. Part I (as this paper will be referred to) will present the spherical aberration family: specifically,
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Building off an earlier work on multinodal third-order aberrations [J. Opt. Soc. Am. A22, 1389 (2005)], this is the first in a series of papers that derives and illustrates the characteristic multinodal geometry for each of the fifth-order aberrations. Part I (as this paper will be referred to) will present the spherical aberration family: specifically,
openaire +2 more sources