| Definition: | ratio of the maximum luminous intensity of the luminaire, generally a projector, to the mean spherical luminous intensity of its lamp Note 1 to entry: In certain countries, the definition of the magnification ratio varies according to the types of luminaires or lamps. Note 2 to entry: The magnification ratio has unit one. Note 3 to entry: This entry was numbered 845-09-43 in IEC 60050-845:1987.
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