= Units of luminous exposure
{wiki=Category:Units_of_luminous_exposure}
The unit of luminous exposure is the **lux-second (lx·s)**. Luminous exposure is defined as the total amount of luminous flux (in lumens) that falls onto a surface per unit area over a specific time period. It is an important measure in fields such as photography, lighting design, and vision science, as it helps quantify how much light a surface has been exposed to, factoring in both intensity and duration.
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