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拡散反射と正反射成分とを有する室内の相互反射の-近似計算法について (その2)

机译:与漫反射和可变反射分量的室内相互关系近似计算方法(第2部分)

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摘要

Illuminance and luminance distributions in rooms are strongly influenced by the reflectance characteristics of the surfaces.The goniophotometric properties of many practical surfaces can be considered as exhibit both a diffuse and a specular component of reflectance.The reflectance of the mixed diffuse-specular surface is apparently influence by the angle of incidence of the light.This paper describes an approximate calculation method of interreflections it rooms with the mixed diffuse-specular surfaces considering the effect of the angle of incidence of the light.The approximation is based on the assumption that mixed diffuse-specular surfaces can be treated solely as uniform diffusers for all interreflections.Calculated values of the luminous exitance of the floor surface by this method are compared with mesured values and showed the effect of specular and diffuse wall reflectance components on the average illuminance of the floor surface is shown.The results show that significant errors occur if the reflectance of the mixed diffuse-specular surfaces is treated to be unaffected by the angle of incidence of the light.
机译:房间的照度和亮度分布受到表面的反射特性的强烈影响。许多实际表面的巨噬光度特性可以被认为是表现出漫反射率和镜面组分。混合漫射镜面的反射率显然是显而易见的通过光的发生角度的影响。本文考虑了镜面剖面镜面的近似计算方法,其考虑了光的入射角的效果。近似基于混合漫射的假设分度表面可以仅作为均匀的扩散器作为所有孤立的漫射器。通过该方法将地板表面的发光出距的显着值与虚荫的值进行比较,并在地板的平均照度上显示了镜面和漫射壁反射部件的效果表现出表面。结果表明了重要的呃如果混合漫射镜面表面的反射率被处理以不受光的发生角度的影响,则发生ROR。

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