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lumen (Lumen)

SI luminous flux measure. Symbol: lm. It is the amount streaming outward through one solid angle of 1 Steradian from a uniform point source having an intensity of one Candela. Lumen = cd*sr = cd * 1.

Ontology

SUMO / UNITS-OF-MEASURE

Class(es)

systeme international unit

is instance of

lumen

Superclass(es)

[tree]

is subclass of

abstract

is subclass of

quantity

is subclass of

physical quantity
is subclass of

is subclass of

[tree]

is subclass of

abstract

is subclass of

relation

is subclass of

single valued relation

is subclass of

function

is subclass of

is subclass of

function quantity

is subclass of

lumen

Coordinate term(s)

ampere becquerel british thermal unit calorie candela celsius degree coulomb electron volt farad gram gray henry hertz joule kelvin degree lux meter mole newton ohm pascal pound force radian second duration siemens sievert steradian tesla unary constant functionquantity volt watt weber

Related WordNet synsets

lumen, lm: a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions