The impact of spectral power distribution on the performance of an achromatic visual task
The impact of spectral power distribution on the performance of an achromatic visual task
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光谱功率分布对消色差视觉任务性能的影响
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
John D. Bullough
中科院分区：
文献类型：
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作者：
P. Boyce;Y. Akashi;C. Hunter;John D. Bullough
本实验测试的假设，光源，产生较小的瞳孔大小，确保更好的消色差视觉任务的性能在相同的明视照度。两组受试者，一组年龄范围为18-28岁，另一组年龄范围为61-78岁，在8个不同的间隙尺寸、两种不同的照度和两种灯暗视/明视比下进行Landolt环任务。对于两个年龄组，瞳孔大小由照度和灯光谱确定。执行任务的速度和准确性由差距大小决定，并且在小得多的程度上由照度决定。灯的光谱对任务的执行没有影响。
This experiment tests the hypothesis that light sources that produce smaller pupil sizes ensure better achromatic visual task performance at the same photopic illuminance. Two groups of subjects, one in the age range 18-28 years and the other in the range 61-78 years, performed a Landolt ring task for eight different gap sizes, two different illuminances, and two lamp scotopic/photopic ratios. For both age groups, pupil size was determined by both illuminance and lamp spectrum. The speed and accuracy of performance of the task was determined by the gap size, and to a much lesser extent, by the illuminance. Lamp spectrum had no effect on the performance of the task.