also: ルックス
noun
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
この部屋の照度は約500ルクスです。
The illuminance in this room is about 500 lux.
ルクスメーターで明るさを測定した。
I measured the brightness with a lux meter.
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.