cie

17-31-145

threshold increment, <glare evaluation>

fTI

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.

Publication date: 2020-12
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