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Wide-Spectrum Microscope with a Long Working Distance Aspherical Objective Based on Obscuration Constraint

We present an approach for an initial configuration design based on obscuration constraint and on-axis Taylor series expansion to realize the design of long working distance microscope (numerical aperture (NA) = 0.13 and working distance (WD) = 525 mm) with a low obscuration aspherical Schwarzschild...

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Detalles Bibliográficos
Autores principales: Wang, Weibo, Wang, Chao, Liu, Jian, Tan, Jiubin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5134545/
https://www.ncbi.nlm.nih.gov/pubmed/27834874
http://dx.doi.org/10.3390/s16111886
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author Wang, Weibo
Wang, Chao
Liu, Jian
Tan, Jiubin
author_facet Wang, Weibo
Wang, Chao
Liu, Jian
Tan, Jiubin
author_sort Wang, Weibo
collection PubMed
description We present an approach for an initial configuration design based on obscuration constraint and on-axis Taylor series expansion to realize the design of long working distance microscope (numerical aperture (NA) = 0.13 and working distance (WD) = 525 mm) with a low obscuration aspherical Schwarzschild objective in wide-spectrum imaging (λ = 400–900 nm). Experiments of the testing on the resolution target and inspection on United States Air Force (USAF) resolution chart and a line charge-coupled device (CCD) (pixel size of 14 μm × 56 μm) with different wavelength light sources (λ = 480 nm, 550 nm, 660 nm, 850 nm) were implemented to verify the validity of the proposed method.
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spelling pubmed-51345452017-01-03 Wide-Spectrum Microscope with a Long Working Distance Aspherical Objective Based on Obscuration Constraint Wang, Weibo Wang, Chao Liu, Jian Tan, Jiubin Sensors (Basel) Article We present an approach for an initial configuration design based on obscuration constraint and on-axis Taylor series expansion to realize the design of long working distance microscope (numerical aperture (NA) = 0.13 and working distance (WD) = 525 mm) with a low obscuration aspherical Schwarzschild objective in wide-spectrum imaging (λ = 400–900 nm). Experiments of the testing on the resolution target and inspection on United States Air Force (USAF) resolution chart and a line charge-coupled device (CCD) (pixel size of 14 μm × 56 μm) with different wavelength light sources (λ = 480 nm, 550 nm, 660 nm, 850 nm) were implemented to verify the validity of the proposed method. MDPI 2016-11-09 /pmc/articles/PMC5134545/ /pubmed/27834874 http://dx.doi.org/10.3390/s16111886 Text en © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Weibo
Wang, Chao
Liu, Jian
Tan, Jiubin
Wide-Spectrum Microscope with a Long Working Distance Aspherical Objective Based on Obscuration Constraint
title Wide-Spectrum Microscope with a Long Working Distance Aspherical Objective Based on Obscuration Constraint
title_full Wide-Spectrum Microscope with a Long Working Distance Aspherical Objective Based on Obscuration Constraint
title_fullStr Wide-Spectrum Microscope with a Long Working Distance Aspherical Objective Based on Obscuration Constraint
title_full_unstemmed Wide-Spectrum Microscope with a Long Working Distance Aspherical Objective Based on Obscuration Constraint
title_short Wide-Spectrum Microscope with a Long Working Distance Aspherical Objective Based on Obscuration Constraint
title_sort wide-spectrum microscope with a long working distance aspherical objective based on obscuration constraint
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5134545/
https://www.ncbi.nlm.nih.gov/pubmed/27834874
http://dx.doi.org/10.3390/s16111886
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