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Focus-Induced Photoresponse: a novel way to measure distances with photodetectors
We present the Focus-Induced Photoresponse (FIP) technique, a novel approach to optical distance measurement. It takes advantage of a universally-observed phenomenon in photodetector devices, an irradiance-dependent responsivity. This means that the output from a sensor is not only dependent on the...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6003943/ https://www.ncbi.nlm.nih.gov/pubmed/29907749 http://dx.doi.org/10.1038/s41598-018-27475-1 |
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author | Pekkola, Oili Lungenschmied, Christoph Fejes, Peter Handreck, Anke Hermes, Wilfried Irle, Stephan Lennartz, Christian Schildknecht, Christian Schillen, Peter Schindler, Patrick Send, Robert Valouch, Sebastian Thiel, Erwin Bruder, Ingmar |
author_facet | Pekkola, Oili Lungenschmied, Christoph Fejes, Peter Handreck, Anke Hermes, Wilfried Irle, Stephan Lennartz, Christian Schildknecht, Christian Schillen, Peter Schindler, Patrick Send, Robert Valouch, Sebastian Thiel, Erwin Bruder, Ingmar |
author_sort | Pekkola, Oili |
collection | PubMed |
description | We present the Focus-Induced Photoresponse (FIP) technique, a novel approach to optical distance measurement. It takes advantage of a universally-observed phenomenon in photodetector devices, an irradiance-dependent responsivity. This means that the output from a sensor is not only dependent on the total flux of incident photons, but also on the size of the area in which they fall. If probe light from an object is cast on the detector through a lens, the sensor response depends on how far in or out of focus the object is. We call this the FIP effect. Here we demonstrate how to use the FIP effect to measure the distance to that object. We show that the FIP technique works with different sensor types and materials, as well as visible and near infrared light. The FIP technique operates on a working principle, which is fundamentally different from all established distance measurement methods and hence offers a way to overcome some of their limitations. FIP enables fast optical distance measurements with a simple single-pixel detector layout and minimal computational power. It allows for measurements that are robust to ambient light even outside the wavelength range accessible with silicon. |
format | Online Article Text |
id | pubmed-6003943 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-60039432018-06-26 Focus-Induced Photoresponse: a novel way to measure distances with photodetectors Pekkola, Oili Lungenschmied, Christoph Fejes, Peter Handreck, Anke Hermes, Wilfried Irle, Stephan Lennartz, Christian Schildknecht, Christian Schillen, Peter Schindler, Patrick Send, Robert Valouch, Sebastian Thiel, Erwin Bruder, Ingmar Sci Rep Article We present the Focus-Induced Photoresponse (FIP) technique, a novel approach to optical distance measurement. It takes advantage of a universally-observed phenomenon in photodetector devices, an irradiance-dependent responsivity. This means that the output from a sensor is not only dependent on the total flux of incident photons, but also on the size of the area in which they fall. If probe light from an object is cast on the detector through a lens, the sensor response depends on how far in or out of focus the object is. We call this the FIP effect. Here we demonstrate how to use the FIP effect to measure the distance to that object. We show that the FIP technique works with different sensor types and materials, as well as visible and near infrared light. The FIP technique operates on a working principle, which is fundamentally different from all established distance measurement methods and hence offers a way to overcome some of their limitations. FIP enables fast optical distance measurements with a simple single-pixel detector layout and minimal computational power. It allows for measurements that are robust to ambient light even outside the wavelength range accessible with silicon. Nature Publishing Group UK 2018-06-15 /pmc/articles/PMC6003943/ /pubmed/29907749 http://dx.doi.org/10.1038/s41598-018-27475-1 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Pekkola, Oili Lungenschmied, Christoph Fejes, Peter Handreck, Anke Hermes, Wilfried Irle, Stephan Lennartz, Christian Schildknecht, Christian Schillen, Peter Schindler, Patrick Send, Robert Valouch, Sebastian Thiel, Erwin Bruder, Ingmar Focus-Induced Photoresponse: a novel way to measure distances with photodetectors |
title | Focus-Induced Photoresponse: a novel way to measure distances with photodetectors |
title_full | Focus-Induced Photoresponse: a novel way to measure distances with photodetectors |
title_fullStr | Focus-Induced Photoresponse: a novel way to measure distances with photodetectors |
title_full_unstemmed | Focus-Induced Photoresponse: a novel way to measure distances with photodetectors |
title_short | Focus-Induced Photoresponse: a novel way to measure distances with photodetectors |
title_sort | focus-induced photoresponse: a novel way to measure distances with photodetectors |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6003943/ https://www.ncbi.nlm.nih.gov/pubmed/29907749 http://dx.doi.org/10.1038/s41598-018-27475-1 |
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