Comparison of Spectral Power Distribution of Various Light Sources in Correlation to Human Circadian System
Srovnání spektrální distribuce různých světelných zdrojů s ohledem na lidský cirkadiální systém

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Date
2015Alternative metrics PlumX
http://hdl.handle.net/11012/51628Altmetrics
10.13164/conf.light.2015.25
http://hdl.handle.net/11012/51628
http://hdl.handle.net/11012/51628
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Non-visual effect of light to human beings are still intensively researched in these days. This paper is focused on investigation of spectral power distribution (SPD) of various light sources in correlation to human circadian system. They were chosen light sources suitable for residential lighting including modern light emitting diodes (LED) with different correlated colour temperatures (CCT), which was normalized to same luminous flux value so that comparison would be reliable. It is known that non-visual photoreceptors via melanopsin photoreceptors (intrinsic photosensitive Retinal Ganglion Cells-ipRGCs), which are co-responsible for synchronization of circadian rhythm, requires blue spectral components in the light with a maximum spectral sensitivity around 460 – 480 nm, therefore this spectral region was studied in details.
Keywords
Spectral power distribution (SPD), correlated colour temperature (CCT), human circadian system, light emitting diode (LED)Persistent identifier
http://hdl.handle.net/11012/51628Document type
Peer reviewedDocument version
Final PDFSource
Proceedings of the 21st International Conference LIGHT SVĚTLO 2015. s. 25-28. ISBN 978-80-214-5244-2http://www.light-conference.eu/
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- Light Světlo 2015 [60]