Results 91 to 100 of about 2,467 (209)

Interferometric Metrology Using Reprogrammable Binary Holograms [PDF]

open access: yes, 2013
Interferometric methods for surface metrology have been widely used for many years due to their speed, accuracy and versatility. It is frequently necessary however to produce a known comparison reference surface to minimise the optical path difference ...
CASHMORE, MATTHEW,THOMAS,DOLPHIN
core  

Implementation on Optical-Mechanical Interface in Mechanical/Optical Integrated Analysis

open access: yes工程科学与技术, 2009
:In order to make data communicate mutully between optical software and FEA software,data processing and transformation algorithm between optical and mechanical analyses were given in optical-mechanical system.
shijianliang, 任戈
doaj  

Estimating conformational landscapes from Cryo-EM particles by 3D Zernike polynomials. [PDF]

open access: yesNat Commun, 2023
Herreros D   +9 more
europepmc   +1 more source

Zernike polynomials for photometric characterization of leds

open access: yes, 2015
Kuala Lumpur, Malaysia, 23-26 April, 2014The group of optical radiation measurements (GIMRO), in the Institute of Optics of the Spanish National Research Council (IO-CSIC), has developed a method based on Zernike polynomials to analyze photometric ...
Pons Aglio, Alicia   +4 more
core  

Approximating deformation fields for the analysis of continuous heterogeneity of biological macromolecules by 3D Zernike polynomials. [PDF]

open access: yesIUCrJ, 2021
Herreros D   +10 more
europepmc   +1 more source

A Closed-Form Analytical Conversion between Zernike and Gatinel–Malet Basis Polynomials to Present Relevant Aberrations in Ophthalmology and Refractive Surgery

open access: yesPhotonics
The Zernike representation of wavefronts interlinks low- and high-order aberrations, which may result in imprecise clinical estimates. Recently, the Gatinel–Malet wavefront representation has been introduced to resolve this problem by deriving a new ...
Masoud Mehrjoo   +3 more
doaj   +1 more source

Accuracy of Zernike polynomials in characterizing optical aberrations and the corneal surface of the eye

open access: yes, 2005
PURPOSE. Zernike polynomials have been successfully used for approximately 70 years in many different fields of optics. Nevertheless, there are some recent discussions regarding the precision and accuracy of these polynomials when applied to surfaces ...
Luis Alberto Carvalho   +1 more
core   +1 more source

Effect of Surface Error Distribution and Aberration on Electromagnetic Performance of a Reflector Antenna

open access: yesInternational Journal of Antennas and Propagation, 2019
In this paper, a method based on the Zernike distribution and the optical aberration is proposed to investigate the effects of the distribution characteristics of surface distortions of a reflector antenna on its electromagnetic performance (EMP).
Binbin Xiang, Congsi Wang, Peiyuan Lian
doaj   +1 more source

Visualization of wavefront aberrations by Zernike polynomials

open access: yesJournal of the European Optical Society-Rapid Publications
Zernike aberration coefficients are typically presented in tabular form or as simple bar graphs, making it difficult to intuitively interpret their meaning and relate them to the specific aberration term.
Reichelt Stephan
doaj   +1 more source

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