建筑材料反射光亮度实验与照明计算方法

Construction Materials Reflective Brightness Experiment and Lighting Calculation Method

摘要:

通过测量23种材料发现，在同一角度用同一功率光源照射，不同材料的反射光亮度完全不同；由反射比确定材料整体亮度水平，光泽度随入射角和观察角不同而变化.用实验数值计算出修正系数K值并综合其他影响值，用于修正CIE(国际照明委员会)推荐的计算公式，建立了一种新的算式.通过照度计算验证比较，用新算式计算的照度仅为原算式的1/3不到，夜景照明节能效果显著.

Abstract:

Experiment of 23 materials under similar lighting condition show that the physical illuminations of different construction materials have widely discrepancy. Lighting level is decided by reflectance,and the illustriousness changes with various angles of incidence and viewing.Consideration of other impact factors, modified coefficient K obtained from experimental values amends the computing formula recommended by the International Commission on Illumination(CIE),and then a new formula is derived.Compared with the original computing formula,an effective energy saving is achieved.