Results 11 to 20 of about 372,775 (305)

Optical Behavior of an Enhanced Monofocal Intraocular Lens Compared with a Standard One

open access: yesApplied Sciences, 2023
The aim of this work was to compare an enhanced monofocal (RayOne EMV RAO200E, Rayner) and standard monofocal (RayOne RAO600C Aspheric, Rayner) intraocular lenses (IOLs) for three nominal powers (+10.00 D, +20.00 D and +30.00 D) as a function of the ...
María García-Montero   +4 more
doaj   +1 more source

OPTICAL FIELD AMPLITUDE DISTRIBUTION ON THE PATTERN PLATE OF OPTOELECTRONIC SYSTEM FOR MEASURING OF DITHER SYSTEM PARAMETERS IN RING LASER GYRO [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2018
Subject of Research.We study the optoelectronic system that measures vibration parameters of dither system in a ring laser gyro and serves for compensation of these oscillations.
A. A. Aviev, V. N. Enin
doaj   +1 more source

ADVANTAGES OF DIFFRACTIVE OPTICAL ELEMENTS APPLICATION IN SIMPLE OPTICAL IMAGING SYSTEMS [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2015
The paper deals with the influence of diffractive optical elements on the optical aberrations. The correction of optical aberrations was investigated in the simple optical systems with one and two lenses (singlet and doublet).
N. D. Zoric   +2 more
doaj   +1 more source

Impact of tear optics on the repeatability of Pentacam AXL wave and iTrace in measuring anterior segment parameters and aberrations

open access: yesIndian Journal of Ophthalmology, 2022
Purpose: To assess impact of tear optics on repeatability of a Scheimpflug device with a Hartmann Shack aberrometer and a ray tracing aberrometer. Methods: One hundred healthy and 100 postrefractive surgery eyes underwent dry eye evaluation including ...
GairikKundu   +6 more
doaj   +1 more source

Factors Influencing Pseudo-Accommodation—The Difference between Subjectively Reported Range of Clear Focus and Objectively Measured Accommodation Range

open access: yesVision, 2019
The key determinants of the range of clear focus in pre-presbyopes and their relative contributions to the difference between subjective range of focus and objective accommodation assessments have not been previously quantified.
Sandeep K. Dhallu   +7 more
doaj   +1 more source

Numerical correction of anti-symmetric aberrations in single HRTEM images of weakly scattering 2D-objects [PDF]

open access: yes, 2014
Here, we present a numerical post-processing method for removing the effect of anti-symmetric residual aberrations in high-resolution transmission electron microscopy (HRTEM) images of weakly scattering 2D-objects.
Chen, Ming-Wei   +6 more
core   +3 more sources

Compact Aberration-Free Relay-Imaging Multi-Pass Layouts for High-Energy Laser Amplifiers

open access: yesApplied Sciences, 2016
We present the results from a theoretical investigation of laser beam propagation in relay imaging multi-pass layouts, which recently found application in high-energy laser amplifiers.
Jörg Körner   +2 more
doaj   +1 more source

Characteristics and survival of patients with advanced cancer and p53 mutations. [PDF]

open access: yes, 2014
P53 mutations are associated with invasive tumors in mouse models. We assessed the p53mutations and survival in patients with advanced cancer treated in the Phase I Program. Of 691 tested patients, 273 (39.5%) had p53 mutations.
Aldape, Kenneth   +12 more
core   +4 more sources

Efficacy, safety, predictability, aberrations and corneal biomechnical parameters after SMILE and FLEx: Meta-analysis [PDF]

open access: yesInternational Journal of Ophthalmology, 2016
AIM: To identify possible differences of efficacy, safety, predictability, higher-order aberrations and corneal biomechnical parameters after small-incision lenticule extraction (SMILE) and femtosecond lenticule extraction (FLEx).
Jing Ma, Nan-Jue Cao, Li-Kun Xia
doaj   +1 more source

Coronagraphic Low Order Wavefront Sensor: Principle and Application to a Phase-Induced Amplitude Coronagraph [PDF]

open access: yes, 2009
High contrast coronagraphic imaging of the immediate surrounding of stars requires exquisite control of low-order wavefront aberrations, such as tip-tilt (pointing) and focus.
Belikov   +12 more
core   +1 more source

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