IEVref:845-01-50ID:
Language:enStatus: Obsolete
Term: candela
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Symbol: cd
Definition: SI unit of luminous intensity: The candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540 × 1012 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian

1 cd = 1 lm • sr -1


Publication date:1987
Source16th General Conference of Weights and Measures, 1979
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