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Development of safe UVB-LED special lighting to support daily recommended vitamin D synthesis: convergence approach of health and UVB-LED lighting

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Abstract

Vitamin D deficiency has become a social problem in many countries as modern people’s indoor living time increases and their exposure to natural light shortens. In order to solve this problem, sun exposure is recommended. Outdoor activity guide service is provided by providing accurate UV-related information, while UV lighting technology is being developed in order to provide UV dose to indoor residents. However, these methods have limitations in directly supporting adequate UV doses for those who have difficulty in carrying out outdoor activities, whereas UV lighting does not provide accurate safety information about exposure. In this paper, a UVB-LED special lighting that supports indoor residents to meet a daily recommended UVB dose is proposed. First, the UVB-LED light source that can achieve an optimal UVB dose is selected. Its lighting characteristics are measured and analyzed and then a combination and control condition of the light source that can safely provide UVB dose are derived. After a stand-type lighting equipment considering ease of use is designed, a UVB-LED special lighting that meets the photobiological safety standard of lighting (Risk Group 2) is developed. The expected amount of vitamin D synthesis by distance and use duration is calculated through a performance test for the proposed lighting. The test results show that when the proposed lighting is used at a distance of 20 cm for 33–40 min, the daily recommended vitamin D synthesis can be achieved.

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Acknowledgements

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2020R1I1A1A01074999), This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2019R1A6A1A03032988), This work was supported by the research grant of the Kongju National University in 2020.

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Authors and Affiliations

  1. Smart Natural Space Research Center, Kongju National University, Cheonan-si, Chungcheongnam-do, South Korea

    Seung-Taek Oh

  2. Department of Game Design, Kongju National Uiniversity, Gongju-si, Chungcheongnam-do, South Korea

    Seuc-Ho Ryu

  3. Department of Computer Science & Engineering, Kongju National University, Cheonan-si, Chungcheongnam-do, South Korea

    Jae-Hyun Lim

  4. Department of Urban Systems Engineering, Kongju National Uiniversity, Cheonan-si, Chungcheongnam-do, South Korea

    Jae-Hyun Lim

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  1. Seung-Taek Oh
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Correspondence to Jae-Hyun Lim.

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Oh, ST., Ryu, SH. & Lim, JH. Development of safe UVB-LED special lighting to support daily recommended vitamin D synthesis: convergence approach of health and UVB-LED lighting. Pers Ubiquit Comput 27, 1201–1208 (2023). https://doi.org/10.1007/s00779-021-01576-7

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  • DOI: https://doi.org/10.1007/s00779-021-01576-7

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