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Oh, S.-T., Ryu, S.-H., Lim, J.-H. & Lim, J.-H. (2021) 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, 
Added by: Sarina (20 Sep 2022 14:56:34 UTC)   
Resource type: Journal Article
DOI: 10.1007/s00779-021-01576-7
BibTeX citation key: Oh2021
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Categories: Englisch = English
Keywords: Leuchtdiode = Light-emitting Diode, Vitamin D = Vitamin D
Creators: Lim, Oh, Ryu
Collection: Pers Ubiquit Comput
Views: 8/20
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Popularity index: 7.75%
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.

 

Added by: Sarina  
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