Illuminance

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Description

A measure of the intensity of light reaching a given surface. The International System of Units (SI) measures illuminance in lux units. One lux equals 1 lumen per square meter. A measurement unit for illuminance commonly used in English speaking countries is footcandle (1 lumen per square foot).

Synonyms and Related Terms

lux; Beleuchtungsstärke (Deut.)

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