Representation of chromatic distribution for lighting system: a case study

Maurizio Rossi; Fulvio Musante

doi:10.1117/12.2084662

8 February 2015 Representation of chromatic distribution for lighting system

Maurizio Rossi, Fulvio Musante

Proceedings Volume 9395, Color Imaging XX: Displaying, Processing, Hardcopy, and Applications; 939518 (2015) https://doi.org/10.1117/12.2084662
Event: SPIE/IS&T Electronic Imaging, 2015, San Francisco, California, United States

Abstract

For the luminaire manufacturer, the measurement of the lighting intensity distribution (LID) emitted by lighting fixture is based on photometry. So light is measured as an achromatic value of intensity and there is no the possibility to discriminate the measurement of white vs. colored light. At the Laboratorio Luce of Politecnico di Milano a new instrument for the measurement of spectral radiant intensities distribution for lighting system has been built: the goniospectra- radiometer. This new measuring tool is based on a traditional mirror gonio-photometer with a CCD spectraradiometer controlled by a PC. Beside the traditional representation of photometric distribution we have introduced a new representation where, in addition to the information about the distribution of luminous intensity in space, new details about the chromaticity characteristic of the light sources have been implemented. Some of the results of this research have been applied in developing and testing a new line of lighting system “My White Light” (the research project “Light, Environment and Humans” funded in the Italian Lombardy region Metadistretti Design Research Program involving Politecnico di Milano, Artemide, Danese, and some other SME of the Lighting Design district), giving scientific notions and applicative in order to support the assumption that colored light sources can be used for the realization of interior luminaries that, other than just have low power consumption and long life, may positively affect the mood of people.

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Maurizio Rossi and Fulvio Musante "Representation of chromatic distribution for lighting system", Proc. SPIE 9395, Color Imaging XX: Displaying, Processing, Hardcopy, and Applications, 939518 (8 February 2015); https://doi.org/10.1117/12.2084662

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KEYWORDS

Light sources and illumination

Light sources

Colorimetry

Light

Laser induced damage

Charge-coupled devices

Photometry

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