Glare perception in outdoor sports lighting applications: field study
IES Annual Conference
Glare is “the sensation produced by luminance within the visual field that is sufficiently greater than the luminance to which the eyes are adapted to cause annoyance, discomfort or loss in visual performance and visibility” (Dilaura et. al., 2012). There are two types of glare: discomfort and disability glare. Discomfort glare causes discomfort without necessarily impairing the vision of objects (Osterhaus, 2005). The disability glare is caused by scatter of light in the eye (Osterhaus, 2005). Discomfort glare is usually associated with subjective impressions and lack of physical explanation (Adrian, 1970). Several studies investigated discomfort glare and its influence visual performance in indoor and outdoor environments, and several metrics were developed. However, the performance of glare metrics has not been widely investigated for outdoor sports lighting applications. In one of the few studies on glare perception in sports lighting. Hargroves investigated the performance of the glare metric GF at a tennis court and concluded that glare control mark (GF) index predicted observers’ subjective impressions (Hargroves, 1986). Later, Donners and colleagues criticized the poor performance of the existing glare metrics for conventional light sources and introduced a new visual discomfort glare (VDG) model (Donners et. al., 2015). Others studied the effect of visual tasks on discomfort under glare conditions (Michael et. al., 2019). However, most of these experiments were limited to mockup or indoor conditions. Field studies with more realistic environments were not used to test glare metric performance. To address these limitations, two field studies with different types of field of views were conducted to compare subjective impressions and photometric measurements in baseball, softball and soccer fields illuminate with LEDs and metal halide (MH) light sources.
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Work Title | Glare perception in outdoor sports lighting applications: field study |
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License | In Copyright (Rights Reserved) |
Work Type | Other |
Publication Date | September 1, 2022 |
Deposited | March 26, 2024 |
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