Cargando…
A G-Fresnel Optical Device and Image Processing Based Miniature Spectrometer for Mechanoluminescence Sensor Applications
This paper presents a miniature spectrometer fabricated based on a G-Fresnel optical device (i.e., diffraction grating and Fresnel lens) and operated by an image-processing algorithm, with an emphasis on the color space conversion in the range of visible light. The miniature spectrometer will be cos...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6720346/ https://www.ncbi.nlm.nih.gov/pubmed/31409054 http://dx.doi.org/10.3390/s19163528 |
_version_ | 1783448104789344256 |
---|---|
author | Min, Kyung-Pyo Kim, Jaehwan Song, Kyo D. Kim, Gi-Woo |
author_facet | Min, Kyung-Pyo Kim, Jaehwan Song, Kyo D. Kim, Gi-Woo |
author_sort | Min, Kyung-Pyo |
collection | PubMed |
description | This paper presents a miniature spectrometer fabricated based on a G-Fresnel optical device (i.e., diffraction grating and Fresnel lens) and operated by an image-processing algorithm, with an emphasis on the color space conversion in the range of visible light. The miniature spectrometer will be cost-effective and consists of a compact G-Fresnel optical device, which diffuses mixed visible light into the spectral image and a μ-processor platform embedded with an image-processing algorithm. The RGB color space commonly used in the image signal from a complementary metal–oxide–semiconductor (CMOS)-type image sensor is converted into the HSV color space, which is one of the most common methods to express color as a numeric value using hue (H), saturation (S), and value (V) via the color space conversion algorithm. Because the HSV color space has the advantages of expressing not only the three primary colors of light as the H but also its intensity as the V, it was possible to obtain both the wavelength and intensity information of the visible light from its spectral image. This miniature spectrometer yielded nonlinear sensitivity of hue in terms of wavelength. In this study, we introduce the potential of the G-Fresnel optical device, which is a miniature spectrometer, and demonstrated by measurement of the mechanoluminescence (ML) spectrum as a proof of concept. |
format | Online Article Text |
id | pubmed-6720346 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-67203462019-10-30 A G-Fresnel Optical Device and Image Processing Based Miniature Spectrometer for Mechanoluminescence Sensor Applications Min, Kyung-Pyo Kim, Jaehwan Song, Kyo D. Kim, Gi-Woo Sensors (Basel) Article This paper presents a miniature spectrometer fabricated based on a G-Fresnel optical device (i.e., diffraction grating and Fresnel lens) and operated by an image-processing algorithm, with an emphasis on the color space conversion in the range of visible light. The miniature spectrometer will be cost-effective and consists of a compact G-Fresnel optical device, which diffuses mixed visible light into the spectral image and a μ-processor platform embedded with an image-processing algorithm. The RGB color space commonly used in the image signal from a complementary metal–oxide–semiconductor (CMOS)-type image sensor is converted into the HSV color space, which is one of the most common methods to express color as a numeric value using hue (H), saturation (S), and value (V) via the color space conversion algorithm. Because the HSV color space has the advantages of expressing not only the three primary colors of light as the H but also its intensity as the V, it was possible to obtain both the wavelength and intensity information of the visible light from its spectral image. This miniature spectrometer yielded nonlinear sensitivity of hue in terms of wavelength. In this study, we introduce the potential of the G-Fresnel optical device, which is a miniature spectrometer, and demonstrated by measurement of the mechanoluminescence (ML) spectrum as a proof of concept. MDPI 2019-08-12 /pmc/articles/PMC6720346/ /pubmed/31409054 http://dx.doi.org/10.3390/s19163528 Text en © 2019 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 Min, Kyung-Pyo Kim, Jaehwan Song, Kyo D. Kim, Gi-Woo A G-Fresnel Optical Device and Image Processing Based Miniature Spectrometer for Mechanoluminescence Sensor Applications |
title | A G-Fresnel Optical Device and Image Processing Based Miniature Spectrometer for Mechanoluminescence Sensor Applications |
title_full | A G-Fresnel Optical Device and Image Processing Based Miniature Spectrometer for Mechanoluminescence Sensor Applications |
title_fullStr | A G-Fresnel Optical Device and Image Processing Based Miniature Spectrometer for Mechanoluminescence Sensor Applications |
title_full_unstemmed | A G-Fresnel Optical Device and Image Processing Based Miniature Spectrometer for Mechanoluminescence Sensor Applications |
title_short | A G-Fresnel Optical Device and Image Processing Based Miniature Spectrometer for Mechanoluminescence Sensor Applications |
title_sort | g-fresnel optical device and image processing based miniature spectrometer for mechanoluminescence sensor applications |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6720346/ https://www.ncbi.nlm.nih.gov/pubmed/31409054 http://dx.doi.org/10.3390/s19163528 |
work_keys_str_mv | AT minkyungpyo agfresnelopticaldeviceandimageprocessingbasedminiaturespectrometerformechanoluminescencesensorapplications AT kimjaehwan agfresnelopticaldeviceandimageprocessingbasedminiaturespectrometerformechanoluminescencesensorapplications AT songkyod agfresnelopticaldeviceandimageprocessingbasedminiaturespectrometerformechanoluminescencesensorapplications AT kimgiwoo agfresnelopticaldeviceandimageprocessingbasedminiaturespectrometerformechanoluminescencesensorapplications AT minkyungpyo gfresnelopticaldeviceandimageprocessingbasedminiaturespectrometerformechanoluminescencesensorapplications AT kimjaehwan gfresnelopticaldeviceandimageprocessingbasedminiaturespectrometerformechanoluminescencesensorapplications AT songkyod gfresnelopticaldeviceandimageprocessingbasedminiaturespectrometerformechanoluminescencesensorapplications AT kimgiwoo gfresnelopticaldeviceandimageprocessingbasedminiaturespectrometerformechanoluminescencesensorapplications |