IEVref:845-29-014ID:
Language:enStatus: Standard
Term: direct lighting
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Definition: lighting by means of primary light sources and luminaires having a distribution of luminous intensity such that the fraction of the emitted luminous flux directly reaching the working plane, assumed to be of infinite extent, is 90 % to 100 %

Note 1 to entry: This entry was numbered 845-09-14 in IEC 60050-845:1987.


Publication date:2020-12
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