IEC Electropedia
fi luumen
sv lumen
en lumen; lm
de Lumen n
fr lumen m
definition
SI unit of luminous flux: Luminous flux emitted in unit solid angle (steradian) by a uniform point source having a luminous intensity of 1 candela
Equivalent definition. Luminous flux of a beam of monochromatic radiation whose frequency is 540 × 1012 hertz and whose radiant flux is 1/683 watt.
SI unit of luminous flux: Luminous flux emitted in unit solid angle (steradian) by a uniform point source having a luminous intensity of 1 candela
Equivalent definition. Luminous flux of a beam of monochromatic radiation whose frequency is 540 × 1012 hertz and whose radiant flux is 1/683 watt.
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Tieteen termipankki
fi luumen
en lumen
huomautus
lat. lumen = valo, aukko
lat. lumen = valo, aukko
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IATE2
fi lumen (★★☆☆);
luumen (★★★☆);
lm (★★★☆)
luumen (★★★☆);
lm (★★★☆)
sv lumen (★★★☆)
en lumen (★★★★);
lm (★★★☆)
lm (★★★☆)
fr lumen (★★★☆);
lm (★★★☆)
lm (★★★☆)
da lumen (★★★☆);
lm (★★★★)
lm (★★★★)
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