Subjective and pupil responses to discomfort glare from small, high-luminance light sources

Autor:	Clarence E. Waters, Yulia Tyukhova
Rok vydání:	2018
Předmět:	010309 optics 021105 building & construction 0103 physical sciences 0211 other engineering and technologies Optometry Glare (vision) 02 engineering and technology Electrical and Electronic Engineering Psychology 01 natural sciences Pupil High luminance
Zdroj:	Lighting Research & Technology. 51:592-611
ISSN:	1477-0938 1477-1535
DOI:	10.1177/1477153518772000
Popis:	This study examined human subjective and pupil responses to small, high-luminance light sources seen against low-luminance backgrounds. Subjective judgements of glare using a seven-point rating scale and the change in pupil diameters following exposure to glare of 47 subjects were measured during evaluation of 36 conditions comprising three glare source luminances (20,000; 205,000; 750,000 cd/m2), two source positions (0°, 10°), two source sizes (10−5, 10−4 sr) and three background luminances (0.03; 0.3; 1 cd/m2). Data analysis suggests that the relative pupil size is correlated with subjective responses to discomfort glare to some extent (r = 0.659). Analysis of variance of relative pupil size measurements demonstrates a significant main effect of the background luminance suggesting that when the background luminance decreases, the relative pupil size increases. Relative pupil size shows the same trend as the relative change in illuminance at the eyes and the discomfort glare perception.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6dd732197bada218169468566643dd5a https://doi.org/10.1177/1477153518772000 Zobrazit plný text záznamu