Color uniformity in spotlights optimized with reflectors and TIR lenses

Autor:	Pablo Benítez, Anne Teupner, Krister Bergenek, Ralph Wirth, Juan C. Miñano
Jazyk:	angličtina
Rok vydání:	2015
Předmět:	Physics Total internal reflection Color difference business.industry Near and far field Luminous intensity Color space Fresnel equations Atomic and Molecular Physics and Optics Color rendering index Optics Optoelectronics Optica business Nonimaging optics
Zdroj:	Optics Express, ISSN 1094-4087, 2015, Vol. 23, No. 3 Archivo Digital UPM Universidad Politécnica de Madrid
Popis:	We analyze the color uniformity in the far field of spotlight systems to estimate visual perception with a merit function derived from human factor experiments. A multi-colored light-emitting diode (LED) light engine with different light mixing levels is combined with several reflectors and total internal reflection (TIR) lenses. The optimized systems are analyzed at several color uniformity levels with regard to the efficiency, peak luminous intensity and dimensions. It is shown that these properties cannot all be optimized at the same time. Furthermore, excellent color uniformity can be reached by a light mixing layer in the light engine or by adding mixing elements to the secondary optics.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fede447180d8bd2175aaab9211a632fd http://oa.upm.es/43550/ Zobrazit plný text záznamu