Disability glare: A study in simulated road lighting conditions
Disability glare: A study in simulated road lighting conditions
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DOI：
10.1177/1477153513510168
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发表时间：
2014-12
影响因子：
2.5
通讯作者：
N. Davoudian;P. Raynham;E. Barrett
中科院分区：
文献类型：
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作者：
N. Davoudian;P. Raynham;E. Barrett
致残性眩光与遮挡性亮度有关，这是由于明亮光源的光在观察者的眼睛内散射，从而降低了视网膜的亮度对比度。本研究使用一种非主观的方法，比较了在眩光存在下观察者的表现下降与眼睛中的遮蔽亮度。共有42名观察员在类似于夜间街道照明的条件下，在眩光源的存在下执行目标探测任务。测量了每个观察者在不同眩光水平下的亮度对比阈值。结果表明，虽然遮挡亮度对观测器的性能有显著影响，但其影响低于对比度损失的预期。此外，50岁以上的观察者的表现不受增加眩光水平的影响。
Disability glare is associated with veiling luminance caused by light from bright sources being scattered within the eyes of observers, thereby reducing retinal luminance contrast. This study compares the reduction in observers’ performance in the presence of glare with veiling luminance in the eye, calculated using a non-subjective method. A total of 42 observers performed a target detection task in the presence of a glare source in conditions similar to street lighting at night. Luminance contrast thresholds were measured for each observer under different levels of glare. Results show that, while veiling luminance has a significant effect on the performance of observers, its effect is lower than expected from contrast loss. Furthermore, the performance of observers over the age of 50 is unaffected by increasing the glare level.