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Methods are presented that detect three types of aberrations in single-particle cryo-EM data sets: symmetrical and antisymmetrical optical aberrations and magnification anisotropy. Because these methods only depend on the availability of a preliminary 3D
Jasenko Zivanov +2 more
doaj +2 more sources
Aberrations and accommodation [PDF]
Modern methods of measuring the refractive state of the eye include wavefront sensors which make it possible to monitor both static and dynamic changes of the ocular wavefront while the eye observes a target positioned at different distances away from the eye.
Antonio J, Del Águila-Carrasco +3 more
openaire +3 more sources
Improved GRAVITY astrometric accuracy from modeling optical aberrations [PDF]
The GRAVITY instrument on the ESO VLTI pioneers the field of high-precision near-infrared interferometry by providing astrometry at the 10−100 μas level. Measurements at this high precision crucially depend on the control of systematic effects.
G. Collaboration +62 more
semanticscholar +1 more source
The classic equation for decomposing the wavefront aberrations of axis-symmetrical optical systems has the form, W ( h 0 , ρ , ϕ ) = ∑ j = 0 ∝ ∑ p = 0 ∝ ∑ m = 0 ∝ C 2 j + m 2 p + m m ( h 0 ...
Lin Psang
doaj +1 more source
High order aberration and straylight evaluation after cataract surgery with implantation of an aspheric, aberration correcting monofocal intraocular lens [PDF]
AIM:To evaluate the quality of vision in respect to high order aberrations and straylight perception after implantation of an aspheric, aberration correcting, monofocal intraocular lens (IOL).METHODS:Twenty-one patients (34 eyes) aged 50 to 83y underwent
Florian T A Kretz +3 more
doaj +1 more source
A laser scanning confocal microscope (LSCM) is an effective scientific instrument for studying sub-micron structures, and it has been widely used in the field of biological detection. However, the illumination depth of LSCMs is limited due to the optical
Kunhua Zhou +5 more
doaj +1 more source
Miniature optical planar camera based on a wide-angle metasurface doublet corrected for monochromatic aberrations [PDF]
Optical metasurfaces are two-dimensional arrays of nano-scatterers that modify optical wavefronts at subwavelength spatial resolution. They are poised to revolutionize optics by enabling complex low-cost systems where multiple metasurfaces are ...
A. Arbabi +5 more
semanticscholar +1 more source
Self calibration of sensorless adaptive optical microscopes [PDF]
We present a self-calibrating scheme for microscopes using model-based wavefront sensorless adaptive optics. Unlike previous methods, this scheme permits the calibration of system aberration modes without the need for a separate wavefront sensor or ...
Thayil Anisha, Booth Martin J.
doaj +1 more source
PRODUCIBILITY ANALYSIS OF LENS SYSTEM DURING OPTICAL DESIGN STAGE [PDF]
Subject of Research. The paper presents the idea of combining various stages of production of optical devices in a single logical sequence from the design of optical elements, through the mechanical and technological production stages, to the calculation
Irina L. Livshits, Oliver Faehnle
doaj +1 more source
Purpose: Corneal irregularities can lead to high order aberrations (HOAs) and may influence the outcomes in terms of intraocular lens (IOL) selection and visual acuity assessment.
Fabrizio Franco +8 more
doaj +1 more source

