Optimization Methods for Spectral Synthesizing of a Tuneable Colour Light Source

Autor:	Armin Sperling, Nina Carli, Grega Bizjak
Rok vydání:	2018
Předmět:	Light source Optics Computer science business.industry 021105 building & construction 0211 other engineering and technologies 0202 electrical engineering electronic engineering information engineering Optimization methods 020206 networking & telecommunications 02 engineering and technology business
Zdroj:	Light & Engineering. :99-108
ISSN:	2541-9935 1068-9761
Popis:	A method for a tuneable colour light source (TCLS) output spectrum synthesizing is described. A TCLS is a multichannel LED light source, which is able to mimic and produce different spectral distributions and can be used for the realization of different spectra, e.g. the spectra of different CIE standard illuminants. The synthesizing of output spectrum is actually an optimization problem of tuning the output spectrum of a TCLS to the target spectrum. It is also a so called constrained problem as output spectrum is produced by adding the weighted spectra of used light sources (e.g. singlecolour LEDs) and due to the fact that there is no “negative light”. Because of that usual optimization methods like least square method cannot be used. A novel synthesizing method based on a constrained optimization process was developed and tested on the laboratory TCLS to be used for calibration purposes. The developed synthesizing method, described in this paper, gives good results but comparison with more simple methods shows that also these can be successfully used.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::659e756d337d213954cb820306f4fd97 https://doi.org/10.33383/2018-023 Zobrazit plný text záznamu