Subjective rating on indoor luminous environment and its effect on reading task performance
(0) In this article, experiments were done in laboratory, simulated with 12 lighting conditions by adjusting different illuminance (150lx, 300lx, 400lx, 500Ix) and CCT of light sources (3000K, 4000K, 6000K). Ten subjects participated in the experiments by doing reading tasks and rating their evaluation on brightness, glare, CCT and general feeling for each lighting condition. Reading time was measured to evaluate the reading task performance. Results: (1) The feeling of bright enough for reading covers the whole ranges of illuminance levels (150lx-500lx) and satisfaction on brightness improves with the illuminance or color temperature increases. (2)The increased satisfaction on luminous environment leads to a significant difference on reading speed (p＜0.05). (3) In a field model for optimum reading lighting environment, reading performance and subjective evaluation should be considered as well as lighting parameters (illuminance, uniformity, glare, CCT).
visual comfort subjective rating reading speed task performance
Yandan Lin Jiaqi Ju Wencheng Chen Dahua Chen Ziyi Wang
Institute for Electric Light Sources, Fudan University, Shanghai 200433, China Shanghai Fasheng Industrial Ltd
国际会议
26th Session of the CIE(国际照明委员会（CIE）第26届大会)
北京
英文
469-472
2007-07-04（万方平台首次上网日期，不代表论文的发表时间）