The light color quality of LED operating at winter temperatures

Przemysław Tabaka, Pawel Rozga

Abstract


The paper presents the results of calculations of colorimetric parameters of LED sources operating at a temperature range from -25oC to 25oC. The chromaticity coordinates and color rendition quality parameters were calculated on the basis of registered spectral distributions of radiation. For individual LED chromaticity shift is illustrated at CIE 1931 x,y diagram with 3 step and 7 step MacAdam ellipses.

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Photonics Letters of Poland - A Publication of the Photonics Society of Poland
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