Illuminance
Definition & Meaning
Part of speech noun
Quick meaning: Illuminance is a noun meaning (physics) The luminous flux incident on unit area of a surface; commonly measured in lux (lumen/metre²) or otherwise foot-candles. The illuminance of a star upon the earth is frequently measured on a negative logarithmic scale referred to as its apparent magnitude, which see.
Meaning
(physics) The luminous flux incident on unit area of a surface; commonly measured in lux (lumen/metre²) or otherwise foot-candles. The illuminance of a star upon the earth is frequently measured on a negative logarithmic scale referred to as its apparent magnitude, which see.
Word Forms
- illuminances
Synonyms for illuminance
Depending on context, synonyms include illumination.
Related Words
Related dictionary entries include illumination, light, luminance, lumen, luminosity, lambert.
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Sources & Attribution
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
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