Results 201 to 210 of about 19,585 (246)

Discomfort glare from interesting images

Lighting Research & Technology, 2005
In laboratory experiments, subjects viewed bright images projected on to small screens. The projected images ranged from neutral patterns to complex scenes. There was a greater tolerance of discomfort glare from images previously judged ‘interesting’ by an independent subject group than from other screen images giving the same calculated glare rating ...
N Tuaycharoen, PR Tregenza
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Discomfort glare prediction by using Unified Glare Rating

Australian Journal of Electrical and Electronics Engineering, 2018
Glare which affects comfort or causes distraction is known as discomfort glare and glare which affects the ability to see any object is known as disability glare.
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Discomfort Glare and Visual Performance

Transactions of the Illuminating Engineering Society, 1968
An experimental study was carried out to determine whether glare which had been scaled for discomfort would produce a decrement in visual performance. Three levels of glare and a no glare condition based on the IES glare index classification were established in a carefully controlled visual environment.
P. T. Stone, S. D. P. Groves
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Discomfort glare from small light sources

Lighting Research and Technology, 1999
Glare from very small sources is grossly overrated by the UGR (Unified Glare Rating) formula. Experiments were carried out on glare from small sources at interior lighting distances. Results varied widely but were of adequate statistical accuracy. They showed that a small glare source is characterised by a constant projected area of 0.005 m2, not a ...
B. Paul, H.D. Einhorn
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Discomfort Glare in Lighted Streets

Transactions of the Illuminating Engineering Society, 1940
Glare which affects comfort or causes distraction is distinguished from glare which affects the ability to see. The results of an investigation to determine the factors which cause discomfort glare in lighted streets are summarised, and the influence of these factors on problems of street lighting design is studied.
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Prediction of discomfort glare from windows

Lighting Research & Technology, 2003
Visual discomfort in a day-lit interior environment is usually represented by the degree of discomfort glare perceived by the user. The paper reports on the evaluation of several models for the prediction of discomfort glare from daylighting, using data collected over a 10-month period, in a purpose built test cell.
K Fisekis, M Davies, M Kolokotroni, P Langford   +3 more
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The Pupillary Response and Discomfort Glare

Journal of the Illuminating Engineering Society, 1975
This IERI report is a four-part study on pupillary fluctuations as an index of discomfort glare. Light reduces the size of the pupil, but it is not size alone that generates discomfort. Rather, it is the fluctuation in size. Here, the authors present new studies of the role of the iris in generating what is known as discomfort glare.
Glenn A. Fry, Vincent M. King
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Unified Glare Rating (UGR) and subjective appraisal of discomfort glare

Lighting Research and Technology, 1996
The study investigated the correlation between the subjective glare rating and the Unified Glare Rating (UGR). Experiments and analyses were carried out. The results showed that there was a good correlation between the subjective glare rating and the UGR glare indices, but that the subjective glare ratings were always a few units lower than the UGR ...
Y. Akashi, R. Muramatsu, S. Kanaya
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Discomfort glare model for mobile display

2015 IEEE 5th International Conference on Consumer Electronics - Berlin (ICCE-Berlin), 2015
This study proposed a new glare model for mobile display according to contents in low illumination condition. The proposed glare model is considered by stimulus size, contrast ratio, stimulus position, averaging luminance, viewing angle, and the number of stimuli. For the model, two-step subjective experiment was conducted.
Wonhee Choe, Min Woo Lee
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Discomfort caused by wide-source glare

Energy and Buildings, 1990
Abstract We report here on experiments to measure subjective response to intense light, or glare caused by a wide source. We have investigated three glare indices: the Building Research Station glare index; the CIE glare index and the Cornell daylight glare index. We have also examined the glare vote and have proposed a new glare evaluation scale, as
Toshie Iwata, Ken-Ichi Kimura, Masanori Shukuya, Kyosuke Takano   +3 more
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