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Sustainability 2015, 7(10), 13454-13468; doi:10.3390/su71013454

Blue Light Hazard and Risk Group Classification of 8 W LED Tubes, Replacing Fluorescent Tubes, through Optical Radiation Measurements

1
LIghting and Acoustic Laboratory (LIA), Department of Energy engineering, Systems, Territory and Construction (DESTeC), University of Pisa, Largo Lucio Lazzarino, 56122 Pisa, Italy
2
Department of Energy Engineering, Faculty of Engineering Technology, KU Leuven, Technology Campus-Ghent, 9000 Ghent, Belgium
*
Author to whom correspondence should be addressed.
Academic Editor: Francesco Asdrubali
Received: 17 July 2015 / Revised: 23 September 2015 / Accepted: 24 September 2015 / Published: 30 September 2015
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Abstract

In this paper, the authors discuss the results of a measurement survey of artificial optical radiation emitted by 8 W LED tubes suitable for the substitution of 18 W fluorescent lamps used for general lighting. For both types of lamps, three different color temperatures were chosen, 3000 K, 4000 K, and 6000 K. These measurements were performed to evaluate the photobiological safety of the sources. The radiance and irradiance values have been measured in a wide range of wavelengths (180–3000 nm). The measurement results obtained for the LED tubes have been compared to those of similar measurements obtained for fluorescent lamps. The analysis has been focused on the range of wavelengths 300–700 nm, the blue light range, which turned out to be defining for the risk groups of the lamps. This classification is a function of the maximum permissible exposure time as indicated in the European Standard EN 62471 on the photobiological safety of lamps and lamp systems. View Full-Text
Keywords: artificial optical radiation; LED tubes; fluorescent lamps; blue light hazard; maximum permissible exposure time; risk group artificial optical radiation; LED tubes; fluorescent lamps; blue light hazard; maximum permissible exposure time; risk group
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Leccese, F.; Vandelanotte, V.; Salvadori, G.; Rocca, M. Blue Light Hazard and Risk Group Classification of 8 W LED Tubes, Replacing Fluorescent Tubes, through Optical Radiation Measurements. Sustainability 2015, 7, 13454-13468.

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