also: ルックス
lux (unit of illuminance)
Scientific and technical term for illuminance; one lux equals one lumen per square meter. Used in lighting, photography, and engineering contexts.
from French
The illuminance in this room is about 500 lux.
I measured the brightness with a lux meter.
The illuminance of this room is about 500 lux.
I measured the brightness of the desk lamp in lux.
Standard katakana spelling for the unit of illuminance, from French 'lux'.
Variant spelling; less common than ルクス. May be confused with ルックス (looks, appearance).
From French 'lux', a unit of illuminance in the International System of Units (SI). The variant ルックス may reflect an alternative transliteration or influence from English pronunciation.