isotropic diffuse transmission
diffuse transmission in which the spatial distribution of the transmitted radiation is such that the radiance or luminance is the same in all directions in the hemisphere into which the radiation is transmitted
Note 1 to entry: This entry was numbered 845-04-52 in IEC 60050-845:1987.
Note 2 to entry: This entry was numbered 17-626 in CIE S 017:2011.