Reconsidering the spectral distribution of light: Do people perceive watts or photons? Visa övriga samt affilieringar
2024 (Engelska) Ingår i: Lighting Research and Technology, ISSN 1477-1535, E-ISSN 1477-0938Artikel i tidskrift (Refereegranskat) Epub ahead of print
Abstract [en]
The spectral distribution is a fundamental property of non-monochromatic optical radiation. It is commonly used in research and practical applications when studying how light interacts with matter and living organisms, including humans. In the field of lighting, misconceptions about the spectral distribution of light are responsible for unfounded claims, which pervade the scientific and technical communities. Starting from the definition of the spectral distribution, this paper describes the ambiguities and errors associated with a purely graphical analysis of the spectral distribution. It also emphasizes the importance of considering the particle nature of light in research involving both visual and non-visual effects, which implies using the spectral distribution expressed in the photon system of units, a system that has been seldom used in lighting research for historical reasons. The authors encourage lighting engineers and researchers to determine which system is best suited to their work and then proceed with the correct use of spectral distributions and of spectral weighting functions for applications involving optical radiation. © The Chartered Institution of Building Services Engineers 2024.
Ort, förlag, år, upplaga, sidor SAGE Publications Ltd , 2024.
Nyckelord [en]
Lighting; Fundamental properties; Graphical analysis; Living organisms; Monochromatics; Nature of light; Non visuals; Optical radiations; Scientific community; Spectral distribution; Technical community; Photons
Nationell ämneskategori
Materialteknik
Identifikatorer URN: urn:nbn:se:ri:diva-73257 DOI: 10.1177/14771535241246060 Scopus ID: 2-s2.0-85191707943 OAI: oai:DiVA.org:ri-73257 DiVA, id: diva2:1860920
2024-05-272024-05-272024-05-27 Bibliografiskt granskad