Lighting in educational environments: an example of a complete analysis of the effects of daylight and electric light on occupants

Alessia Pedace, Laura Bellia, Barbato, Alessia Pedace

    Risultato della ricerca: Article

    29 Citazioni (Scopus)

    Abstract

    Light induces not only visual responses but also non - visual effects, indeed it affects performance, mood, attention and influences the synchronization of the biological clock. Duration, timing, intensity and the spectral power distribution of the light that reaches the eyes can have influence on human circadian rhythm and consequently on health. Given the important impact of the non - visual responses on people wellbeing, developing a model that allows lighting designers to predict them is a fundamental goal. In this paper a case study is reported: a series of measurements were carried out in a University classroom in order to study daylight and electric light characteristics and also their impact on the human circadian system by calculating melatonin suppression. The results obtained show that not only the intensity but also the SPD of the light received by the eyes plays a significant role on circadian response and the spectral characteristics of internal and external surfaces influence the SPD and thence the CCT of the light that hits the eyes. Although the working behavior of the human circadian system is not completely understood, the results obtained give the designers new points of view to better evaluate lighting quality and its implications in indoor environments
    Lingua originaleEnglish
    pagine (da-a)-
    Numero di pagine15
    RivistaBuilding and Environment
    Volume68
    Stato di pubblicazionePublished - 2013

    Fingerprint

    work environment
    Lighting
    distribution of power
    suppression
    mood
    health
    circadian rhythm
    Clocks
    Synchronization
    lighting
    analysis
    effect
    Health

    All Science Journal Classification (ASJC) codes

    • Civil and Structural Engineering
    • Building and Construction
    • Geography, Planning and Development
    • Environmental Engineering

    Cita questo

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    title = "Lighting in educational environments: an example of a complete analysis of the effects of daylight and electric light on occupants",
    abstract = "Light induces not only visual responses but also non - visual effects, indeed it affects performance, mood, attention and influences the synchronization of the biological clock. Duration, timing, intensity and the spectral power distribution of the light that reaches the eyes can have influence on human circadian rhythm and consequently on health. Given the important impact of the non - visual responses on people wellbeing, developing a model that allows lighting designers to predict them is a fundamental goal. In this paper a case study is reported: a series of measurements were carried out in a University classroom in order to study daylight and electric light characteristics and also their impact on the human circadian system by calculating melatonin suppression. The results obtained show that not only the intensity but also the SPD of the light received by the eyes plays a significant role on circadian response and the spectral characteristics of internal and external surfaces influence the SPD and thence the CCT of the light that hits the eyes. Although the working behavior of the human circadian system is not completely understood, the results obtained give the designers new points of view to better evaluate lighting quality and its implications in indoor environments",
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    T1 - Lighting in educational environments: an example of a complete analysis of the effects of daylight and electric light on occupants

    AU - Pedace, Alessia

    AU - Bellia, Laura

    AU - Barbato, null

    AU - Pedace, Alessia

    PY - 2013

    Y1 - 2013

    N2 - Light induces not only visual responses but also non - visual effects, indeed it affects performance, mood, attention and influences the synchronization of the biological clock. Duration, timing, intensity and the spectral power distribution of the light that reaches the eyes can have influence on human circadian rhythm and consequently on health. Given the important impact of the non - visual responses on people wellbeing, developing a model that allows lighting designers to predict them is a fundamental goal. In this paper a case study is reported: a series of measurements were carried out in a University classroom in order to study daylight and electric light characteristics and also their impact on the human circadian system by calculating melatonin suppression. The results obtained show that not only the intensity but also the SPD of the light received by the eyes plays a significant role on circadian response and the spectral characteristics of internal and external surfaces influence the SPD and thence the CCT of the light that hits the eyes. Although the working behavior of the human circadian system is not completely understood, the results obtained give the designers new points of view to better evaluate lighting quality and its implications in indoor environments

    AB - Light induces not only visual responses but also non - visual effects, indeed it affects performance, mood, attention and influences the synchronization of the biological clock. Duration, timing, intensity and the spectral power distribution of the light that reaches the eyes can have influence on human circadian rhythm and consequently on health. Given the important impact of the non - visual responses on people wellbeing, developing a model that allows lighting designers to predict them is a fundamental goal. In this paper a case study is reported: a series of measurements were carried out in a University classroom in order to study daylight and electric light characteristics and also their impact on the human circadian system by calculating melatonin suppression. The results obtained show that not only the intensity but also the SPD of the light received by the eyes plays a significant role on circadian response and the spectral characteristics of internal and external surfaces influence the SPD and thence the CCT of the light that hits the eyes. Although the working behavior of the human circadian system is not completely understood, the results obtained give the designers new points of view to better evaluate lighting quality and its implications in indoor environments

    UR - http://hdl.handle.net/10447/83127

    M3 - Article

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    JO - Building and Environment

    JF - Building and Environment

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