Results 191 to 200 of about 19,585 (246)

Spectral discomfort glare sensitivity investigations

Ophthalmic and Physiological Optics, 2010
The main concern of car headlamp manufacturers is to provide better visibility. Unfortunately, by increasing the luminous intensity of the headlamp, the risk of increasing discomfort glare for the other road users increases. One possibility to increase visibility and decrease glare could be the selection of a spectral power distribution for the ...
Judit, Fekete, Cecilia, Sik-Lányi, János, Schanda   +2 more
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Discomfort Glare: Range Effects

Journal of the Illuminating Engineering Society, 1981
Forty paid observers made adjustments to the borderline between comfort and discomfort (BCD). A random half of the observers adjusted a glare source with a maximum luminance of 300,000 fL, the other half a glare source with a maximum luminance of 30,000 fL. The mean BCD in the first case was 26,900 fL, in the other it was 3,860 fL.
Ashok B. Lulla, Corwin A. Bennett
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Discomfort glare indices: a comparative study

Applied Optics, 1994
From the luminance distribution measured with a stereoluminancemeter we have studied the variation in the principal indices of discomfort glare while considering the orientation of the line of vision of the observer and the limiting luminance of the glare source.
M, Rubiño, A, Cruz, J A, Garcia, E, Hita   +3 more
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Discomfort glare measurement

SPIE Proceedings, 2009
In the paper some results of research on discomfort glare measurement are described. The idea of practical realization of this measurement in interiors on the basis of the analysis of the investigated room image is presented. To obtain the necessary geometric quantities the coordinates of proper pixels in the image and some parameters of the imaging ...
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Discomfort Glare from Automobile Headlights

Journal of the Illuminating Engineering Society, 1984
Three studies are described concerning discomfort glare arising from automotive headlamps. Two issues were of principle concern, (1) the so-called “range effect,” and (2) the relationship between laboratory and field findings concerning glare. The first study was conducted in a laboratory and was designed to evaluate the range effect and subject age. A
Paul L. Olson, Michael Sivak
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Discomfort Glare from Highway Lighting

Journal of the Illuminating Engineering Society, 1980
The question addressed in this report is whether the subjective appraisal of discomfort glare caused by highway lighting can be reasonably predicted from a photometrically based formula. The photometric measurements required for the Adrian-Schreuder glare control mark formula were made on four Toronto installations.
P. K. Kaiser, D. Bodinger, C. Blamey, F. W. Jung   +3 more
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Glare Discomfort and Pupil Diameter

Journal of the Optical Society of America, 1956
A limited study has shown that the diameter of the pupil of the eye is not related directly to the sensation of discomfort which results from a bright light source in the field of view. Other factors, especially the illumination received at the eye, govern the pupil diameter.
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Evaluating Discomfort From Lighting Glare

Batiment International, Building Research and Practice, 1983
A brief account is given of the purpose and significance of research on glare, particularly its influence on production, as well as the four factors for evaluating the degree of discomfort from glare. Mention is made of me arrangement of equipment, the conditions for experiments and the process of obtaining mathematical expressions for glare evaluation.
Pang Yunfan, Zhang Shaogang, Peng Mingyuan, Gao Lutai   +3 more
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Discomfort Glare: Duration-intensity Relationship

Journal of the Illuminating Engineering Society, 1978
The purpose of this experiment was to determine the relationship between comfort and discomfort for glare (BCD) and the duration of exposure to the glare source. The research results show a general conformity to an expected duration-intensity for noxious stimuli.
Iftekhar Ahmed, Corwin A. Bennett
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Overhead Glare and Visual Discomfort

Journal of the Illuminating Engineering Society, 2003
(2003). Overhead Glare and Visual Discomfort. Journal of the Illuminating Engineering Society: Vol. 32, No. 1, pp. 73-88.
Peter R. Boyce, Claudia M. Hunter, Carlos Inclan   +2 more
openaire   +1 more source