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http://dx.doi.org/10.3807/KJOP.2017.28.1.016

Exposure-Limit Distance as a Safety-Indicating Parameter of a High-Intensity Flash Source  

Park, Seung-Man (Department of Nanobiotronics, Hoseo University)
Kim, Sang-Wook (Department of Nanobiotronics, Hoseo University)
Publication Information
Korean Journal of Optics and Photonics / v.28, no.1, 2017 , pp. 16-21 More about this Journal
Abstract
A systematic understanding of the effects of high-intensity flash sources on the human eye is strongly needed, not only for proper use of the sources, but for human eye health. In this study, the exposure-limit distance (ELD), indicating the minimal safe distance in case of seeing by chance a high-intensity flash, is proposed. The optical procedures to determine the ELD of a high-intensity flash are clarified, and the dependence of ELD on its parameters such as luminous intensity, duration, and radius of a flash are thoroughly investigated. From this investigation it is obvious that, while being weakly dependent on duration, the ELD is nearly proportional to the luminous intensity and the radius of a flash. The proposed ELD as an intuitive safety-indicating parameter is more useful and intuitive than the other characteristic parameters of a high-intensity flash. The ELD is expected to be an essential parameter as a safety indicator, to characterize the performance of a high-intensity flash and to promote the safety of the human eye.
Keywords
Radiometry; Exposure limit Radiance; Exposure limit distance; High intensity light source; Eye protection;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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