Measurement of Circadian Effectiveness in Lighting for Office Applications
| Autor: | Julian Marcel Klabes, Paul Myland, Julian Kunkel, Simon Benkner, Sebastian Babilon, Tran Quoc Khanh, Sebastian Beck |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Computer science QH301-705.5 Acoustics QC1-999 0211 other engineering and technologies Field of view Context (language use) spatially resolved light measurements human-centric lighting design 02 engineering and technology non-visual effects 03 medical and health sciences circadian stimulus 0302 clinical medicine Approximation error Component (UML) 021105 building & construction Range (statistics) General Materials Science Ceiling (aeronautics) Biology (General) office lighting Instrumentation QD1-999 Fluid Flow and Transfer Processes Process Chemistry and Technology Physics General Engineering Engineering (General). Civil engineering (General) circadian effectiveness Computer Science Applications Variable (computer science) Chemistry Radiometry TA1-2040 030217 neurology & neurosurgery |
| Zdroj: | Applied Sciences Volume 11 Issue 15 Applied Sciences, Vol 11, Iss 6936, p 6936 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11156936 |
| Popis: | Featured Application: In-field spatially resolved light measurements for the characterization of non-visual effects and proper prediction of the circadian effectiveness for human-centric lighting design. Abstract: As one factor among others, circadian effectiveness depends on the spatial light distribution of the prevalent lighting conditions. In a typical office context focusing on computer work, the light that is experienced by the office workers is usually composed of a direct component emitted by the room luminaires and the computer monitors as well as by an indirect component reflected from the walls, surfaces, and ceiling. Due to this multi-directional light pattern, spatially resolved light measurements are required for an adequate prediction of non-visual light-induced effects. In this work, we therefore propose a novel methodological framework for spatially resolved light measurements that allows for an estimate of the circadian effectiveness of a lighting situation for variable field of view (FOV) definitions. Results of exemplary in-field office light measurements are reported and compared to those obtained from standard spectral radiometry to validate the accuracy of the proposed approach. The corresponding relative error is found to be of the order of 3–6%, which denotes an acceptable range for most practical applications. In addition, the impact of different FOVs as well as non-zero measurement angles will be investigated. |
| Databáze: | OpenAIRE |
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