The DOI matches its Crossref record; 50 of the 51 references it cites were found in a registry or an index.
A framework for predicting the non-visual effects of daylight – Part I: photobiology- based model
Open accessAbstract
This paper investigates the formulation of a modelling framework for the non-visual effects of daylight, such as entrainment of the circadian system and maintenance of alertness. The body of empirical data from photobiology studies is now sufficient to start developing preliminary non-visual lighting evaluation methods for lighting design. Eventually, these non-visual effects have the potential to become a relevant quantity to consider when assessing the overall daylighting performance of a space. This paper describes the assumptions and general approach that were developed to propose a modeling framework for occupant exposure to non-visual effects of light, and presents a novel means of visualising the ‘circadian potential’ of a point in space. The proposed approach uses current outcomes of photobiology research to define – at this point static – threshold values for illumination in terms of spectrum, intensity and timing of light at the human eye. These values are then translated into goals for lighting simulation, based on vertical illuminance at the eye, that – ultimately – could become goals for building design. A new climate-based simulation model has been developed to apply these concepts to a residential environment. This will be described in Part 2 of this paper.
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“In fact, in the early to mid-morning (06:00 to 10:00) and in the evening (18:00 to 22:00), humans experience a state of transition [90], which is a “heat gain” in the morning (as the core body temperature climbs) and a “heat loss” in the evening (as the core body temperature drops).”
From Human thermal perception and time of day: A review (2021) · cites this paper as [90]
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Metadata
- Authors
- Andersen, M., Mardaljevic, J., & Lockley, S.
- Affiliations
- École Polytechnique Fédérale de Lausanne (CH)
- De Montfort University (GB)
- Division of Sleep Medicine, Department of Medicine, Brigham and Women’s Hospital and Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
- Corresponding author
- Andersen, M
- Venue
- Lighting Research & Technology
- Publisher
- SAGE Publications
- Published
- 2012-02-13
- Volume
- 44
- Issue
- 1
- Pages
- 37-53
- ISSN
- 0024-3426 (ISSN-L)
- 1477-1535
- 1477-0938
- OpenAlex
- W2103289434
- Cited by
- 177
- References
- 51
- Citations by year
- 2026: 10 · 2025: 13 · 2024: 12 · 2023: 20 · 2022: 14 · 2021: 17 · 2020: 14 · 2019: 15 · 2018: 15 · 2017: 7 · 2016: 7 · 2015: 10 · 2014: 8 · 2013: 12 · 2012: 3
- FWCI
- 4.71
- Type
- journal article
- Language
- en
- Open access
- green
- dspace.lboro.ac.uk
- Licence
- Locations
- Lighting Research & Technology (publishedVersion)
- DMU Open Research Archive (De Montfort University) (submittedVersion)
- Loughborough University Institutional Repository (Loughborough University) (submittedVersion, cc-by-nc-nd)
- Surrey Research Insight Open Access (The University of Surrey) (submittedVersion)
- Loughborough University Research Repository (Loughborough University) (submittedVersion, cc-by-nc-nd)
- Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
- Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
- Topics
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
- Physical Sciences › Engineering › Building and Construction › Building Energy and Comfort Optimization
- Physical Sciences › Environmental Science › Global and Planetary Change › Impact of Light on Environment and Health
- Keywords
- circadian entrainment, alertness, photobiology, lighting simulation
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