threshold increment, <glare evaluation>
measure of disability glare expressed as the percentage increase in luminance contrast threshold required between an object and its background for it to be seen equally well with a source of glare present
Note 1 to entry: Increasing values of threshold increment correspond to increasing disability glare.
Note 2 to entry: The threshold increment has unit one.
Note 3 to entry: This entry was numbered 17-1312 in CIE S 017:2011.