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Title

Luminous intensity comparison based on new standard lamps with led reference spectrum

AuthorsGerloff, T.; Kallenbach, L.; Ledig, J.; Schrader, C.; Sperling, A.; Pulli, T.; Askola, J.; Šmid, M.; Kliment, P.; Pons Aglio, Alicia CSIC ORCID; Ferrero, Alejandro CSIC ORCID; Gál, P.; Brida, G.; Blattner, P.; Stuker, F.; Schneider, M.; Dönsberg, T.; Poikonen, T.
KeywordsPhotometry
Luminous intensity
Metrological comparison
LED standard lamp
Standard illuminant A
LED reference spectrum
Issue Date2019
PublisherInternational Commission on Illumination
CitationProceedings of 29th CIE Session 2019: 77-84 (2019)
AbstractPhotometric calibrations are mainly based on the use of scientific grade incandescent standard lamps [CIE 2002]. Most of the measurement methods and reference spectra used in photometry were developed long before modern solid-state lighting (SSL) products were invented and introduced into the lighting market. In addition, phasing-out of incandescent lamps for lighting applications poses a metrological problem: all lamps and luminaires measured in practice differ completely in their behaviour with respect to spectral distribution, flicker and aging, as compared to incandescent lamps used in photometer calibrations. The European research project “Future photometry based on solid-state lighting products” (EMPIR 15SIB07 PhotoLED) has investigated the fundamental requirements for photometry based on white light-emitting diode (LED) sources. The project partners have analysed many hundreds of LED spectra and derived suitable LED reference spectra for photometric calibrations. In this article we present the practical advantages and disadvantages of luminous intensity standards based on white LEDs with very similar spectra to the hypothetical reference spectrum developed in the project. Furthermore, we discuss their suitability for metrological comparisons of the luminous intensity.
Description8 pags., 8 figs., 1 tab.
Publisher version (URL)http://dx.doi.org/10.25039/x46.2019
URIhttp://hdl.handle.net/10261/211555
DOIhttp://dx.doi.org/10.25039/x46.2019
Identifiersdoi: 10.25039/x46.2019
isbn: 978-3-902842-74-9
Appears in Collections:(CFMAC-IO) Libros y partes de libros
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