Characterization of a smartphone camera's response to ultraviolet A radiation
Article
Article Title | Characterization of a smartphone camera's response to ultraviolet A radiation |
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ERA Journal ID | 15283 |
Article Category | Article |
Authors | Igoe, Damien (Author), Parisi, Alfio (Author) and Carter, Brad (Author) |
Journal Title | Photochemistry and Photobiology |
Journal Citation | 89 (1), pp. 215-218 |
Number of Pages | 4 |
Year | 2013 |
Publisher | John Wiley & Sons |
Place of Publication | Hoboken, NJ. United States |
ISSN | 0031-8655 |
1751-1097 | |
Digital Object Identifier (DOI) | https://doi.org/10.1111/j.1751-1097.2012.01216.x |
Web Address (URL) | http://onlinelibrary.wiley.com/doi/10.1111/j.1751-1097.2012.01216.x/pdf |
Abstract | As part of a wider study into the use of smartphones as solar ultraviolet radiation monitors, this paper characterises the ultraviolet A (UVA)(320-400 nm) response of a consumer CMOS based smartphone image sensor in a controlled laboratory environment. The CMOS image sensor in the camera possesses inherent sensitivity to UVA, and despite the attenuation due to the lens and neutral density and wavelength-specific bandpass filters, the measured relative UVA irradiances relative to the incident irradiances range from 0.0065% at 380 nm to 0.0051% at 340 nm. In addition, the sensor demonstrates a predictable response to low-intensity discrete UVA stimuli that can be modelled using the ratio of recorded digital values to the incident UVA irradiance for a given automatic exposure time, and resulting in measurement errors that are typically less than 5%. Our results support the idea that smartphones can be used for scientific monitoring of UVA radiation. |
Keywords | UVA; skin cancer; smartphone; solar; monitor |
ANZSRC Field of Research 2020 | 519999. Other physical sciences not elsewhere classified |
400999. Electronics, sensors and digital hardware not elsewhere classified | |
370106. Atmospheric radiation | |
Public Notes | © 2012 Wiley Periodicals. Accepted version deposited in accordance with the copyright policy of the publisher. |
Byline Affiliations | Faculty of Sciences |
Department of Biological and Physical Sciences | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q1vwq/characterization-of-a-smartphone-camera-s-response-to-ultraviolet-a-radiation
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