RESEARCH PAPER
Functional features and hygienic aspects of LED lamps
 
More details
Hide details
1
Department of Physical Hazard, Work Physiology and Ergonomics, Institute of Occupational Medicine and Environmental Health Head of Department: Stanisław Marzec, PhD
CORRESPONDING AUTHOR
Elżbieta Janosik   

Department of Physical Hazard, Work Physiology and Ergonomics, Institute of Occupational Medicine and Environmental Health Head of Department: Stanisław Marzec, PhD
 
Med Srod. 2015;18(4):15–22
 
KEYWORDS
ABSTRACT
Aim of the study:
The aim of this study was to identify characteristics of the LED lamps and their influence on perceptual abilities and feeling of a human.

Material and Methods:
Technical parameters of ten chosen LED sources of light were determined. The sources varied among each other, according to the shape, colour temperature, colour rendering index and also name of the manufacturer. For each of the analysed sources of light, the illuminance, lighting uniformity, lighting luminance and degree of glare were determined. Moreover, also a subjective evaluation of the lighting conditions created by those lighting sources was performed.

Results and conclusions::
The study results have shown that the majority of the analysed sources of light provided their users with a good visibility and comfort of vision, but on the other hand, if used in an inappropriate way, they may be the reason for the unaccepted glare. It has been stated that the appropriate use and earlier – the well-thought-out choice of the LED sources of light are crucial. One has to consider the luminous flux, the colour temperature, the shape, as well as the manufacturer, who guarantees the quality and the safety class of the LED source of light.

FUNDING
The study funded by the IOMEH core funding for statutory R&D activities in 2014 (ZSFFPiE – 4)
 
REFERENCES (9)
1.
Led-y, moduły LED, ledówki., A joint publication of Polski Komitet Oświetleniowy i Związek Producentów Sprzętu Oświetleniowego „Pol-lighting”, 1st Edition, Warsaw, May 2011, www. pollighting.pl.
 
2.
PN-83/E-04040.03 Pomiary fotometryczne i radiometryczne. Pomiar natężenia oświetlenia. (Photometric and radiometric measurements. The measurement of the lighting intensity).
 
3.
PN-83/E-04040.04 Pomiary fotometryczne i radiometryczne. Pomiar luminancji. (Photometric and radiometric measurements. The measurement of the luminance).
 
4.
PN-84/E-02033 Oświetlenie wnętrz światłem elektrycznym. (Lighting rooms with the electric light).
 
5.
PN-EN 12464-1:2012 Światło i oświetlenie. Oświetlenie miejsc pracy. Część 1: Miejsca pracy we wnętrzach. (Light and lighting. Lighting of the place of work. Part 1: Inside work places).
 
6.
Bąk J.: Obliczanie oświetlenia ogólnego wnętrz. WNT, Warsaw 1983.
 
7.
Falkowska Z.: Okulistyka, PZWL, Warsaw 1978.
 
8.
Report of ANSES: Lighting systems using light-emitting diodes: health issues to be considered., October 2010, www.anses.fr.
 
9.
Czyżewski D.: Luminance distribution of LED luminous surface. Przegląd Elektrotechniczny 2010, 10: 166-169.
 
eISSN:2084-6312
ISSN:1505-7054