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光束的能量單位 (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)

is instance of

光束的能量單位

Superclass(es)

[tree]

is subclass of

抽象的

is subclass of

數量

is subclass of

物理量

is subclass of

[tree]

is subclass of

抽象的

is subclass of

關係

is subclass of

is subclass of

函數

is subclass of

is subclass of

函數量

is subclass of

光束的能量單位

Coordinate term(s)

電流強度單位-安培放射性活度單位英國熱量單位-BTU 熱量的單位-卡路里發光強度的單位攝氏庫侖電壓單位-電伏特電容量單位-法拉克入射劑量電感單位頻率單位-赫茲功或能的單位-焦爾絕對溫標照明度的國際單位公尺克分子量力的單位-牛頓電阻單位-歐姆壓力的單位力量單位弧度秒計電導單位劑量當量球面度磁通量密度之國際單位一元恆定函數量電壓單位瓦特磁通量

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