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首页> 外文会议>International Ergonomics Congress; 20011211-20011214; Mumbai; IN >Effect of Luminous Environment on Visual Performance and Visual Comfort of Subjects in Selected Age Groups
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Effect of Luminous Environment on Visual Performance and Visual Comfort of Subjects in Selected Age Groups

机译：发光环境对特定年龄段对象视觉性能和视觉舒适度的影响

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The present study was an attempt to examine the impact of varying levels of illuminance, brightness contrast between selected test object and its background, and age of the subjects on their visual performance and visual comfort. Landolt's ring subtending a visual angle of 4'31" of an arc served as the test object; visual details of which matched with numerous kitchen tasks, based on the evaluation of a panel of judges. In a repeated measures experimental study, 39 female subjects of age ranging between 21 to 50 years performed the Landolt's ring test against three brightness contrasts under six selected illuminances, in a simulated kitchen created specially for the purpose. Apart from descriptive statistics, inferential statistics like repeated measures MANOVA were computed, along with non-parametric test like Friedman's test. Age of subjects appeared to have significant impact on their visual performance, the same being significant (P<0.01) between young and old, and middle and old age groups. A comparison of main effect of illuminance of 500 lx and 300 lx, and 500 lx and 166 lx revealed no significant difference in the subject's performance. However, the main effect of illuminance levels of 100 lx, 72 lx and 17 lx on visual performance of subject of all ages against three brightness contrasts were found significant (P<0.01) when compared with that of 500 lx. Brightness contrast also seemed to influence the subject's performance under varying illuminances. The paper, in addition, discusses about designing luminous environment for optimal visual performance and comfort, and implication of the study on future research, action programmes and policy issues.
机译：本研究试图检验不同水平的照度，所选测试对象与其背景之间的亮度对比以及对象的年龄对其视觉性能和视觉舒适度的影响。兰德特环的对角线为4'31“，作为圆弧的测试对象；根据评审团的评估，其视觉细节与众多厨房工作相匹配。在一项重复测量实验研究中，有39位女性受试者年龄介于21至50岁之间的人在专门为此目的而设计的模拟厨房中，对六种选定照度下的三种亮度对比进行了Landolt环试验，除描述性统计数据外，还计算了推论统计数据，例如重复测量MANOVA，以及非参数测试，如弗里德曼测试（Friedman's test），受试者的年龄似乎对其视力性能有显着影响，年轻人与老年人，中老年人之间的显着性差异均显着（P <0.01），照度的主要影响为500 lx 300 lx，500 lx和166 lx的拍摄对象的表现没有显着差异，但是，照度水平分别为100 lx，72 lx和与500 lx相比，所有年龄的受试者在三种亮度对比下的视觉性能均为17 lx（P <0.01）。在变化的照度下，亮度对比度似乎也会影响拍摄对象的表现。此外，本文还讨论了设计发光环境以获得最佳视觉性能和舒适度的方法，以及该研究对未来研究，行动计划和政策问题的启示。

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