利用“眼动-视野”模型的室内人眼光暴露测算方法  

Calculation and Measurement of Light Exposure of Human Eyes in Indoor Space Based on the Gaze-dependent Visual Field Model

作　　者：何思琪 严永红[2] HE Siqi;YAN Yonghong(College of Landscape Architecture,Nanjing Forestry University,Nanjing 210037,China;Faculty of Architecture and Urban Planning,Chongqing University,Chongqing 400030,China)

机构地区：[1]南京林业大学风景园林学院,南京210037 [2]重庆大学建筑城规学院,重庆400030

出　　处：《建筑科学》2023年第6期117-129,共13页Building Science

基　　金：国家自然科学基金面上项目“基于体质适应性的VDT办公光环境研究”(51778081);国家自然科学基金面上项目“基于青少年视健康安全防护的电子竞技训练空间光环境研究”(51978097)。

摘　　要：计算使用者眼部的光暴露水平是实现人本照明的重要基础。研究提出将全视野瞳孔进光量(以下称“入眼光通量”)作为人眼光暴露水平的量化指标,综合考虑人眼的注视行为、全视野范围和瞳孔光反应三者的影响,建立眼动视野模型并推导瞳孔表观面积的计算方法;其次,借助鱼眼相机与高动态范围图像(HDRI)技术来实现入眼光通量的测算,并开展验证实验。结果显示,入眼光通量的空间接收效率与瞳孔椭圆率(短轴与长轴之比)、光线入射角相关联;不同拍摄方式的入眼光通量测算结果差异在8.5%以内,估算的瞳孔尺寸差异不超过0.5%;投影在视野中的光源所贡献的入眼光通量占比超过70%,大于其他室内表面或物体的占比。研究构建了入眼光通量的初步测算流程,为人本照明系统和光环境质量评估提供了技术支持。Monitoring the light exposure dose of the human eye is essential when constructing a human-centric lighting system.This study proposed to use the luminous flux entering the human eye from the whole visual field as a metric to quantify the light exposure level of human eyes,based on the comprehensive consideration of human's gaze behavior,visual field,and pupillary light reaction.A gaze-dependent visual field model was established to induce the calculation of pupillary apparent area.Then,a DSLR camera fitted with a fisheye lens was used to validate the calculation with the help of the high dynamic range image(HDRI)technology.The results show that the spatial receiving efficiency of luminous flux entering human eyes is correlated with the pupil diameter ratio and incident angle of incoming light.The difference in luminous flux value and pupil diameter retrieved by different ways of photography is less than 8.5%and 0.5%,respectively.The contribution of luminous flux entering human eyes by the light source projected into the visual field reaches over 70%,greater than the share of other indoor surface or objects.This study completed the calculation and measurement of luminous flux entering human eyes and provide technical support to the quality evaluation of human centric lighting system luminous environment.

关 键 词：人眼光暴露 入眼光通量 注视角 瞳孔表观面积 高动态范围图像 

分 类 号：TU113[建筑科学—建筑理论]