Total Evaluation of LED Lighting : Glare, Visibility, Suitability for Environmental Lighting(<Feature>LED Street Light -Evaluations of Discomfort Glare & Lighting Environment-)
نویسندگان
چکیده
منابع مشابه
Model predicting discomfort glare caused by LED road lights.
To model discomfort glare from LED road lighting, the effect of four key variables on perceived glare was explored. These variables were: the average glare source luminance (Lg), the background luminance (Lb), the solid angle of the glare source from the perspective of the viewer (ω) and the angle between the glare source and the line of sight (θ). Based on these four variables 72 different lig...
متن کاملEvaluation of discomfort glare in the 50+ elderly: experimental study.
OBJECTIVES The aim of the study was to analyze discomfort glare sensation in subjects aged 50 years and more in comparison with younger subjects (i.e. younger than 35 years of age). MATERIAL AND METHODS The experiments were performed on a computer workstation placed in controlled lighting environment where 2 discomfort glare conditions were modeled. Each participant performed for about 1 h sp...
متن کاملMechanisms for discomfort glare in central vision.
PURPOSE The presence of a bright light source in the visual field can generate visual discomfort. Based on empirical observations we can predict to a reasonable degree of accuracy how uncomfortable a given lighting installation is likely to be; yet very little is known about the mechanism or physiological underpinnings that lead to visual discomfort. This study attempts to elucidate some of the...
متن کاملA Review of Street Lighting Evaluations: Crime Reduction Effects
Consideration of the literature concerning street lighting effects on crime yields the following conclusions: (1) Precisely targeted increases in street lighting generally have crime reduction effects. (2) More general increases in street lighting seem to have crime prevention effects, but this outcome is not universal Older and U.S. research yield fewer positive results than more recent U.K. r...
متن کاملCortical hyperexcitability and sensitivity to discomfort glare
It is well established that there are two main aspects to glare, the visual impairment and the discomfort, known as disability and discomfort glare, respectively. In contrast to the case of disability glare we understand very little about the underlying mechanisms or physiology of discomfort glare. This study attempts to elucidate the neural mechanisms involved using fMRI and glare sources with...
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ژورنال
عنوان ژورنال: JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN
سال: 2015
ISSN: 0019-2341,1349-838X,2185-1506
DOI: 10.2150/jieij.99.514