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Preliminary measure for the characterization of the usefulness of light sources

Trinh, Quang Vinh and Bodrogi, Peter Zsolt and Khanh, Tran Quoc :
Preliminary measure for the characterization of the usefulness of light sources.
In: Optics Express 14550, 26 (11) ISSN 1094-4087
[Article] , (2018)

Abstract

A preliminary usefulness metric is defined. The metric is intended to characterize the energy efficiency of light sources in a more comprehensive way than the luminous efficacy of a source by taking selected spectral aspects of human centric lighting into consideration. The presented version of the metric is a combination of well-established measures of color quality, brightness and the circadian effect derived from the spectral power distribution of the light source. The metric includes a limited application dependence: it yields different values for interior and exterior applications, static and dynamic as well as relaxing and activating light source spectra. Light source categories (A-G) with preliminary category limits were also computed in the two-dimensional diagram associated with the metric. The metric should be considered as a basis for further discussions and not as a final solution.

Item Type: Article
Erschienen: 2018
Creators: Trinh, Quang Vinh and Bodrogi, Peter Zsolt and Khanh, Tran Quoc
Title: Preliminary measure for the characterization of the usefulness of light sources
Language: English
Abstract:

A preliminary usefulness metric is defined. The metric is intended to characterize the energy efficiency of light sources in a more comprehensive way than the luminous efficacy of a source by taking selected spectral aspects of human centric lighting into consideration. The presented version of the metric is a combination of well-established measures of color quality, brightness and the circadian effect derived from the spectral power distribution of the light source. The metric includes a limited application dependence: it yields different values for interior and exterior applications, static and dynamic as well as relaxing and activating light source spectra. Light source categories (A-G) with preliminary category limits were also computed in the two-dimensional diagram associated with the metric. The metric should be considered as a basis for further discussions and not as a final solution.

Journal or Publication Title: Optics Express 14550
Volume: 26
Number: 11
Divisions: 18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design
18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design > Light Technology
Date Deposited: 20 Dec 2018 07:18
DOI: 10.1364/OE.26.014538
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