Depth-sensing technology using a negative microlens array
In this study, an optical depth-sensing system whose focus distance was equal to its object distance was constructed by using a lens with a shortened depth of field. In addition to a mechanical control lens that captured two-dimensional images, a set of negative microlens array films used to shorten...
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Taylor & Francis Group
2021
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oai:doaj.org-article:4cadd323ef5947258d2e3596e455bce92021-11-26T11:19:47ZDepth-sensing technology using a negative microlens array1559-96121559-962010.1080/15599612.2021.1978600https://doaj.org/article/4cadd323ef5947258d2e3596e455bce92021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/15599612.2021.1978600https://doaj.org/toc/1559-9612https://doaj.org/toc/1559-9620In this study, an optical depth-sensing system whose focus distance was equal to its object distance was constructed by using a lens with a shortened depth of field. In addition to a mechanical control lens that captured two-dimensional images, a set of negative microlens array films used to shorten the depth of field was installed in this system. The developed system can scan a region and obtain the relationship curve between the focus distance and the motor step. Depth information is acquired by discerning the sharpness of the object’s outline and determining whether the captured object is in focus. The motor step is initialized when the object is in focus. The optical path of the developed system is simple, and its volume is minimal; thus, the developed system is suitable for being combined with cell phone lenses.Chih-Hsiung LinKun-Huang ChenTaylor & Francis Grouparticledepth sensingshallow depth of fieldnegative micro lens arrayMaterials of engineering and construction. Mechanics of materialsTA401-492Applied optics. PhotonicsTA1501-1820ENInternational Journal of Optomechatronics, Vol 15, Iss 1, Pp 170-181 (2021) |
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depth sensing shallow depth of field negative micro lens array Materials of engineering and construction. Mechanics of materials TA401-492 Applied optics. Photonics TA1501-1820 |
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depth sensing shallow depth of field negative micro lens array Materials of engineering and construction. Mechanics of materials TA401-492 Applied optics. Photonics TA1501-1820 Chih-Hsiung Lin Kun-Huang Chen Depth-sensing technology using a negative microlens array |
description |
In this study, an optical depth-sensing system whose focus distance was equal to its object distance was constructed by using a lens with a shortened depth of field. In addition to a mechanical control lens that captured two-dimensional images, a set of negative microlens array films used to shorten the depth of field was installed in this system. The developed system can scan a region and obtain the relationship curve between the focus distance and the motor step. Depth information is acquired by discerning the sharpness of the object’s outline and determining whether the captured object is in focus. The motor step is initialized when the object is in focus. The optical path of the developed system is simple, and its volume is minimal; thus, the developed system is suitable for being combined with cell phone lenses. |
format |
article |
author |
Chih-Hsiung Lin Kun-Huang Chen |
author_facet |
Chih-Hsiung Lin Kun-Huang Chen |
author_sort |
Chih-Hsiung Lin |
title |
Depth-sensing technology using a negative microlens array |
title_short |
Depth-sensing technology using a negative microlens array |
title_full |
Depth-sensing technology using a negative microlens array |
title_fullStr |
Depth-sensing technology using a negative microlens array |
title_full_unstemmed |
Depth-sensing technology using a negative microlens array |
title_sort |
depth-sensing technology using a negative microlens array |
publisher |
Taylor & Francis Group |
publishDate |
2021 |
url |
https://doaj.org/article/4cadd323ef5947258d2e3596e455bce9 |
work_keys_str_mv |
AT chihhsiunglin depthsensingtechnologyusinganegativemicrolensarray AT kunhuangchen depthsensingtechnologyusinganegativemicrolensarray |
_version_ |
1718409532683583488 |