IEVref:845-31-098ID:
Language:enStatus: Standard
Term: contrast revealing coefficient, <of a tunnel lighting installation>
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Symbol: qc
Definition: quotient of the luminance, Lv, of a road surface and the vertical illuminance, Ev,v, at a specific location in a tunnel

Note 1 to entry: The contrast revealing coefficient is expressed in steradian to the power minus one (sr−1).


Publication date:2020-12
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