Definition, Meaning & Synonyms

lux

noun

/lʌks/

Definition

Lux is a unit of measurement for luminous flux per unit area, quantifying illuminance. It is defined as one lumen per square meter and is used to measure how much light is received on a surface.

Examples

The recommended light level for reading is around 300 lux.
In a typical office, the illumination should be about 500 lux.
During the school hours, classrooms should be maintained at a minimum of 300 to 500 lux for optimal learning.

Meaning

In simpler terms, lux measures the brightness of light that hits a surface, helping to determine how well-lit an area is. It plays a crucial role in fields like photography, lighting design, and safety regulations.