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Lux

The lux (symbol: lx) is the unit of illuminance, or luminous flux per unit area, in the International System of Units (SI). It is equal to one lumen per square metre. In photometry, this is used as a measure of the irradiance, as perceived by the spectrally unequally responding human eye, of light that hits or passes through a surface. It is analogous to…

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CGS units
10−4 ph
SI base units
cd⋅sr⋅m−2
Symbol
lx
Unit of
illuminance
Unit system
SI
US customary units
0.0929 fc

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Overview

Explanation

Use in video-camera specifications

Non-SI units of illuminance

Legacy Unicode symbol

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Map overview Semantic statistics

Lux

Nodes48
Edges47
Triples22
Avg. degree1.96
Density0.041667
Components1

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Lux

Top relations

related to Non-SI units of illuminance · 6
Lux → American, English, One, SI, Since, The
related to Relationship between illuminance and irradiance · 4
Lux → Like, The, There, W/m2
related to Illuminance · 2
Lux → Illuminance, One
related to Use in video-camera specifications · 2
Lux → Specifications, Still
CGS units · 1
Lux → 10−4 ph
SI base units · 1
Lux → cd⋅sr⋅m−2
Symbol · 1
Lux → lx
Unit of · 1
Lux → illuminance
Unit system · 1
Lux → SI
US customary units · 1
Lux → 0.0929 fc

Important terminology Word statistics

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Important terminology

illuminance light per one surface unit units luminous si function lx source area luminosity square lumen flux human irradiance wavelength

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
LuxCGS units10−4 ph1.00infobox
LuxSI base unitscd⋅sr⋅m−21.00infobox
LuxSymbollx1.00infobox
LuxUnit ofilluminance1.00infobox
LuxUnit systemSI1.00infobox
LuxUS customary units0.0929 fc1.00infobox
camcordersinstance ofUse in video-camera specificationsSpecifications for video cameras0.80text
surveillance cameras often include a minimal illuminance level in lux at which the camera will record a satisfactory imageinstance ofUse in video-camera specificationsSpecifications for video cameras0.80text
Luxrelated to IlluminanceIlluminance0.60section
Luxrelated to IlluminanceOne0.60section
Luxrelated to Non-SI units of illuminanceThe0.60section
Luxrelated to Non-SI units of illuminanceEnglish0.60section

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