采光口光强体数学模型  

Mathematical Model of Light Intensity of Daylighting Orifice

作　　者：罗茂羲 钟祖勋 罗奕 Luo Maoxi;Zhong Zuxun;Luo Yi(School of Architecture and Urban Planning,Chongqing University,Chongqing 400044,P.R.China)

机构地区：[1]重庆大学建筑城规学院,重庆400044

出　　处：《灯与照明》2020年第3期1-22,共22页Light & Lighting

摘　　要：在特定条件下,采光口也有配光曲线存在,把采光口外的诸光源(发光源、反光源)和窗结构等元素联系在一起,可以用数学模型表示采光口内侧的光强体大小和形状。光通过采光口进入采光空间,到达采光区、地板区,各区域的入射光在区域内和区域间进行多次反射后,把一部分光能转变为工作面照度。采光各区域对入射光的反光能力,即区域光效率。人工照明也可以用同样的方法直接计算工作面照度。Natural lighting technology,predecessors have made substantial achievements.Inspired by the light distribution curve of lamps,it is studied that there are also light distribution curves of light outlets under certain conditions.The mathematical model is used to represent the size and shape of the light intensity body inside the daylighting port by connecting the light source outside the daylighting port(source light,reverse light source)with the window structure and other elements.When light enters daylighting space through daylighting mouth,it arrives at daylighting area,floor area,the incident light of each area,after carrying on reflection for many times inside the area and between the areas,convert a part of light energy into working face illuminance,each area of daylighting shows its own reflective ability to incident light,namely the area light efficiency.Artificial lighting can also be used in the same way to directly calculate the illumination of the working surface.

关 键 词：光强体 数学模型 光流程 区域光效率 

分 类 号：TU113.5[建筑科学—建筑理论]