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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-11-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/16/11/1886 |
| _version_ | 1798041504966508544 |
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| author | Weibo Wang Chao Wang Jian Liu Jiubin Tan |
| author_facet | Weibo Wang Chao Wang Jian Liu Jiubin Tan |
| author_sort | Weibo Wang |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-04-11T22:22:27Z |
| format | Article |
| id | doaj.art-02dc74b4152a4bc294f8c09b1a44589d |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:22:27Z |
| publishDate | 2016-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-02dc74b4152a4bc294f8c09b1a44589d2022-12-22T03:59:59ZengMDPI AGSensors1424-82202016-11-011611188610.3390/s16111886s16111886Wide-Spectrum Microscope with a Long Working Distance Aspherical Objective Based on Obscuration ConstraintWeibo Wang0Chao Wang1Jian Liu2Jiubin Tan3Institute of Ultra-Precision Optoelectronic Instrument Engineering, Harbin Institute of Technology, Harbin 150001, ChinaInstitute of Ultra-Precision Optoelectronic Instrument Engineering, Harbin Institute of Technology, Harbin 150001, ChinaInstitute of Ultra-Precision Optoelectronic Instrument Engineering, Harbin Institute of Technology, Harbin 150001, ChinaInstitute of Ultra-Precision Optoelectronic Instrument Engineering, Harbin Institute of Technology, Harbin 150001, ChinaWe 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.http://www.mdpi.com/1424-8220/16/11/1886wide-spectrum microscopeaspherical Schwarzschild objectivelow obscurationlong working distance |
| spellingShingle | Weibo Wang Chao Wang Jian Liu Jiubin Tan Wide-Spectrum Microscope with a Long Working Distance Aspherical Objective Based on Obscuration Constraint Sensors wide-spectrum microscope aspherical Schwarzschild objective low obscuration long working distance |
| 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 | wide-spectrum microscope aspherical Schwarzschild objective low obscuration long working distance |
| url | http://www.mdpi.com/1424-8220/16/11/1886 |
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