抄録
The concept and practicability of two useful methods reported for interior lighting calculations in France have been widely introduced and discussed by a few Japanese investigators from various points of view CIE Publication No. 40: “Calculations for Interior Lighting —Basic Method—” was published in 1978, and the final report on “Applied Method” has now been prepared under the chairman of TC-1.5, A.B. de Graaff. The authors compare the computation process and its characteristics of RM and MR coefficients obtained by the present studies with that of these coefficients based on the CIE methods approved by TC-1.5, and point out the difference between the data of RM and MR coefficients prepared in the CIE methods and the numerical data calculated by the authors. Lastly, they discuss the effect on the final computation results for lighting designs from the standpoints such as room index, suspension ratio and effective reflectance of the ceiling cavity.
